- Daw, Zamira and Holloway, C. Michael. From Skepticism to
Understanding: Correcting Misconceptions About Overarching
Properties. 2025 IEEE/AIAA 44th Digital Avionics Systems
Conference (DASC), September
2025. URL https://ntrs.nasa.gov/citations/20250006016
- Chen, Mary. Detangling Safety Knowledge with
Contextualism. Technical Memorandum NASA/TM-20240015747, National
Aeronautics and Space Administration, January
2025. URL https://ntrs.nasa.gov/citations/20240015747
- Holloway, C. Michael. The Friendly Argument Notation (FAN): 2023
Version. Technical Memorandum NASA/TM-20230004423, National
Aeronautics and Space Administration, December
2023. URL https://ntrs.nasa.gov/citations/20230004423
- Cohen, Sarah; Gotlieb, Rose; Holloway, C. Michael; and Lehman,
Sarah. Aggregating Confidence: A Problem and A Solution. Technical
Memorandum NASA/TM-20230012813, National Aeronautics and Space
Administration, Hampton, Virginia, November
2023. URL https://ntrs.nasa.gov/citations/20230012813
- (The Rock Hunters): McCardel, Finlay; Holloway, C. Michael;
Wasson, Kim.; McDonnell, Neil; Graydon, Mallory.; Peña, Abel; and
Lehman, Sarah. Towards a Coherent View of Evidence in Safety
Assurance. Technical Memorandum NASA/TM-20230003336, National
Aeronautics and Space Administration, Hampton, Virginia, April
2023. URL https://ntrs.nasa.gov/citations/20230003336
- Daw, Zamira; Beecher, Scott; and Holloway, Michael. Leveling
Arguments: Easier Said than Done. 2023 IEEE/AIAA 42nd Digital
Avionics Systems Conference (DASC), Barcelona, Spain, October
2023. URL https://ntrs.nasa.gov/citations/20230009081
- Holloway, C. Michael. False Beliefs about the Overarching
Properties and Overarching Properties Related Arguments. 2022
IEEE/AIAA 41st Digital Avionics Systems Conference (DASC),
September
2022. URL https://ntrs.nasa.gov/citations/20220008513
- Wasson, Kimberly S. and Holloway, C. Michael. An introduction to
Constructing and Assessing Overarching Properties Related Arguments
(OPRAs). White paper, NASA Langley Research Center, January
2022. URL https://ntrs.nasa.gov/citations/20210025425
- Holloway, C. Michael and Wasson, Kimberly S.: A Primer on
Argument Assessment. White paper, National Aeronautics and Space
Administration, Hampton, VA, USA, October
2021. URL https://ntrs.nasa.gov/citations/20210022807
- Holloway, C. Michael and Wasson, Kimberly S. A Primer on
Argument. White paper, National Aeronautics and Space
Administration, Hampton, VA, USA, June
2021. URL https://ntrs.nasa.gov/citations/20210019993
- Daw, Zamira; Beecher, Scott; Holloway, C. Michael; and Graydon,
Mallory. Overarching Properties as means of compliance: An
industrial case study. 2021 IEEE/AIAA 40th Digital Avionics
Systems Conference (DASC), Oct 2021, pp. 1-10.
- Holloway, C. Michael; and Wasson, Kimberly S. A Primer on
Argument (Overarching Properties Edition). White paper, National
Aeronautics and Space Administration, Hampton, VA, USA, June
2020. URL https://ntrs.nasa.gov/citations/20205003337
- Holloway, C. Michael. The Friendly Argument Notation
(FAN). Technical Memorandum NASA/TM-2020-5002931, National
Aeronautics and Space Administration, Hampton, VA, USA, June
2020. URL https://ntrs.nasa.gov/citations/20205002931
- Holloway, C. Michael. a very brief informal but adequately
comprehensive introduction to argument. February 2020.
- Holloway, C. Michael. Presuppositions Predetermine
Plausibility. October
2019. URL https://shemesh.larc.nasa.gov/arg/p3cmh.pdf
- Holloway, C. Michael. Understanding the Overarching
Properties. Technical Memorandum NASA/TM-2019-219650, National
Aeronautics and Space Administration, Hampton, VA, USA, July
2019. URL https://hdl.handle.net/2060/20190029284
- Holloway, C. Michael. a very brief informal but adequately
comprehensive introduction to argument. July
2019. URL https://shemesh.larc.nasa.gov/arg/intro2argbycmh.pdf
- Holloway, C. Michael. An eclectic introduction to assurance
cases. April
2019. URL https://shemesh.larc.nasa.gov/arg/eclecticintro.pdf
- Holloway, C. Michael. Understanding Assurance Cases: An Educational Presentation
in Five Parts. Developed for the FAA under Annex 2 of IAI-1073.
URL https://shemesh.larc.nasa.gov/arg/uac.html.
Some of the material here is obsolete.
- Holloway, C. Michael. Understanding Assurance Cases: Module 1
- Foundation.
URL https://shemesh.larc.nasa.gov/arg/uac-module1-foundation.pdf.
Revised
July 2020. Original September 2015
- Holloway, C. Michael. Understanding Assurance Cases: Module 2 -
Application. URL https://shemesh.larc.nasa.gov/arg/uac-module2-application.pdf. Original
September 2015
- Holloway, C. Michael. Understanding Assurance Cases: Module 3 -
Evaluation. URL https://shemesh.larc.nasa.gov/arg/uac-module3-evaluation.pdf. Revised
July 2020. Original September 2015.
- Holloway, C. Michael. Understanding Assurance Cases: Module 4 - Creation.
URL
https://shemesh.larc.nasa.gov/arg/uac-module4-creation.pdf. Revised July 2020.
Original March 2016.
- Holloway, C. Michael. Understanding Assurance Cases: Module 5 -
speculation. URL https://shemesh.larc.nasa.gov/arg/uac-module5-speculation.pdf. Revised
July 2020. Original March 2016.
- Holloway, C. Michael and Graydon, P. J. Explicate '78: Assurance
Case Applicability to Digital Systems. DOT/FAA/TC-17/67, January
2018.
- Heavner, Emily and Holloway, C. Michael. Assurance Arguments for
the Non-graphically-inclined: Two Approaches. Technical Memorandum
NASA/TM-2017-219650, National Aeronautics and Space Administration,
Hampton, VA, USA, July
2017. URL https://hdl.handle.net/2060/20170007188.
- Graydon, P. J. and Holloway, C. Michael. An Investigation of
Proposed Techniques for Quantifying Confidence in Assurance
Arguments. Safety Science, vol. 92, Feb. 2017,
pp. 53-65.
- Graydon, P. J. and Holloway, C. Michael. An Investigation of
Proposed Techniques for Quantifying Confidence in Assurance
Arguments. Technical Memorandum NASA/TM-2016-219195, National
Aeronautics and Space Administration, Hampton, VA, USA, May
2016. URL https://hdl.handle.net/2060/20160006526.
- Holloway, C. Michael. Explicate ’78: Assurance Case Applicability
to Digital Systems. Final report to the FAA, December 2016.
- Graydon, P. J. and Holloway, C. Michael. Planning the Unplanned
Experiment: Towards Assessing the Efficacy of Standards for
Safety-Critical Software. , NASA/TM-2015-218804, NASA Langley Research
Center, Hampton VA, September
2015. URL https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20150018918.pdf.
- Graydon, P. J. and Holloway, C. Michael. Planning the Unplanned
Experiment: Towards Assessing the Efficacy of Standards for
Safety-Critical Software. 33rd International System Safety
Conference (ISSC), San Diego, CA, USA, August
2015. URL https://hdl.handle.net/2060/20160006368.
- Holloway, C. Michael. Explicate ’78: Uncovering the Implicit
Assurance Case in DO-178C. Engineering Systems for
Safety. Proceedings of the 23rd Safety-critical Systems
Symposium, M. Parsons and T. Anderson, eds., Safety Critical
Systems Club, Bristol, UK, February 2-5 2015,
pp. 205-225. URL https://hdl.handle.net/2060/20150009473,
iSBN: 978-1505689082.
- Graydon, P. J. and Holloway, C. Michael. “Evidence” Under a
Magnifying Glass: Thoughts on Safety Argument
Epistemology. Proceedings of the IET System Safety and Cyber
Security Conference, Bristol, UK, October
2015. URL https://hdl.handle.net/2060/20160006505.
- Holloway, C. Michael; Knight, John C.; and McDermid, John
A. Neither Pollyanna nor Chicken Little: Thoughts on the Ethics of
Automation. 2014 IEEE International Symposium on Ethics in
Engineering, Science and Technology, Chicago, May 23-24
2014. URL https://hdl.handle.net/2060/20140010015.
- Holloway, C. Michael. Making the Implicit Explicit: Towards an
Assurance Case for DO-178C. Proceedings of the 31st International
System Safety Conference, Boston, Massachusetts, August 12-16
2013. URL https://hdl.handle.net/2060/20140002745.
- Brown, Scott and Holloway, C. Michael. Analyzing a Midair
Collision Over the Hudson River. Proceedings of the 30th
International Conference on Systems Safety, Atlanta, Georgia,
August 6-10
2012. URL https://hdl.handle.net/2060/20120013555.
- Johnson, Chris W.; Oltedal, H. A.; and Holloway,
C. Michael. Comparing the Identification of Recommendations by
Different Accident Investigators Using a Common Methodology. 7th
IET International Conference on System Safety, Incorporating the Cyber
Security Conference, Edinburgh, Scotland, October 15-18
2012. URL https://hdl.handle.net/2060/20120016005.
- Holloway, C. Michael. Towards Understanding the DO-178C / ED-12C
Assurance Case. 7th IET International Conference on System Safety,
Incorporating the Cyber Security Conference, Edinburgh, Scotland,
October 15-18
2012. URL https://hdl.handle.net/2060/20120016708.
- Johnson, Chris W. and Holloway, C. Michael. A Possible Approach
for Addressing Neglected Human Factors Issues of Systems
Engineering. Proceedings of the IET 6th International Conference
on System Safety, Birmingham, UK, September 20-22
2011. URL https://hdl.handle.net/2060/20110015882.
- Holloway, C. Michael and Johnson, Chris W. Reducing our Ignorance:
Finding Answers to Certain Epistemic Questions for Software
Systems. Proceedings of the IET 6th International Conference on
System Safety, Birmingham, UK, September 20-22
2011. URL https://hdl.handle.net/2060/20110015881.
- Johnson, Chris W. and Holloway, C. Michael. Safety Arguments for
Next Generation, Location Aware Computing. Proceedings of the IET
5th International Conference on System Safety, Manchester, UK,
October 18-20
2010. URL https://hdl.handle.net/2060/20100036829.
- Holloway, C. Michael and Johnson, Chris W. Epistemic Questions
& Answers for Software System Safety. Proceedings of the 28th
International System Safety Conference, Minneapolis, Minnesota,
August 30 - September 3
2010. URL https://hdl.handle.net/2060/20100033212.
- Holloway, C. Michael; Johnson, Chris W.; and Collins, Kristi R. A
Safety Conundrum Illustrated: Logic, Mathematics, and Science are not
Enough. Proceedings of the IET 5th International Conference on
System Safety, Manchester, UK, October 18-20
2010. URL https://hdl.handle.net/2060/20100036830.
- Holloway, C. Michael and Johnson, Chris W. Towards a Comprehensive
Consideration of Epistemic Questions in Software System
Safety. Proceedings of the IET 4th International Conference on
System Safety, London UK, October 25-26
2009. URL https://hdl.handle.net/2060/20090040478.
- Holloway, C. Michael. Safety Case Notations: Alternatives for the
Non-Graphically Inclined? 3rd IET International Conference on
System Safety, Birmingham, UK, October 20-22
2008. URL https://hdl.handle.net/2060/20080042416.
- Holloway, C. Michael and Johnson, Chris W. How Past Loss of
Control Accidents May Inform Safety Cases for Advanced Control Systems
on Commercial Aircraft. Third IET Systems Safety Conference,
The Institution of Engineering and Technology, NEC, Birmingham, UK,
October
2008. URL https://hdl.handle.net/2060/20080042414.
- Johnson, Chris W. and Holloway, C. Michael. A Historical
Perspective on Aviation Accident Investigation. Safety
Systems, vol. 17, no. 2, January 2008. Invited Paper for 50th
Edition of Newsletter.
- Johnson, Chris W.; Shea, Christine; and Holloway, C. Michael. The
Role of Trust and Interaction in GPS Related Accidents: A Human
Factors Safety Assessment of the Global Positioning System
(GPS). Proceedings of the 26th International Conference on Systems
Safety, International System Safety Society, Vancouver, Canada,
August 25-29
2008. URL https://hdl.handle.net/2060/20080034491.
- Johnson, Chris W. and Holloway, C. Michael. A Longitudinal
Analysis of the Causal Factors in Major Maritime Accidents in the USA
and Canada (1996-2006). The Safety of Systems: Proceedings of the
15th Safety-Critical Systems Symposium, F. Redmill and
T. Anderson, eds., Springer-Verlag, London UK, February 2007,
pp. 85-104. URL https://hdl.handle.net/2060/20070010578.
- Holloway, C. Michael and Johnson, Chris W. A Look at Aircraft
Accident Analysis in the Early Days: Do Early 20th Century Accident
Investgation Techniques Have Any Lessons for Today? 2nd IET
Systems Safety Conference, Institution for Engineeering and
Technology, Savoy Place, London, UK, October 2007,
pp. 235-240. URL https://hdl.handle.net/2060/20070034018.
- Johnson, Chris W. and Holloway, C. Michael. The Dangers of Failure
Masking in Fault Tolerant Software: Aspects of a Recent In-Flight
Upset Event. 2nd IET Systems Safety Conference, The
Institution of Engineering and Technology, Savoy Place, London, UK,
October 2007,
pp. 60-65. URL https://hdl.handle.net/2060/20070034017.
- Holloway, C. Michael and Johnson, Chris W. Why System Safety
Professionals Should Read Accident Reports. The First IET
International Conference on System Safety, The Institution of
Engineering and Technology, Savoy Place, London, June 2006,
pp. 325-331. URL https://hdl.handle.net/2060/20060020178.
- Holloway, C. Michael. Software and Accidents: A Discussion about
the Past & Speculation about the Future, June 2006. Invited talk
at the 2006 FAA Software and Complex Electronic Hardward
Standardization Conference, Atlanta, Georgia.
- Holloway, C. Michael. Safety, Risk, and Other Misunderstood
Ideas. The First IET International Conference on System
Safety, The Institution of Engineering and Technology, Savoy
Place, London, June 2006.
- Johnson, Chris W. and Holloway, C. Michael. Questioning the Role
of Requirements Engineering in the Causes of Safety-Critical Software
Failures. The First IET International Conference on System
Safety, The Institution of Engineering and Technology, Savoy
Place, London, June 2006,
pp. 352-360. URL https://hdl.handle.net/2060/20060020183.
- Greenwell, William S.; Knight, John C.; Pease, Jacob J.; and
Holloway, C. Michael. A Taxonomy of Fallacies in System Safety
Arguments. 24th International System Safety Conference,
System Safety Society, Albuquerque, New Mexico, 31 July - 4 August
2006. URL https://hdl.handle.net/2060/20060027794.
- Hayhurst, Kelly J. and Holloway, C. Michael. Visions of Automation
and Realities of Certification. Infotech@Aerospace,
Arlington, Virginia, September
2005. URL https://hdl.handle.net/2060/20050237820,
the version that passed through NASA review is not nearly as good as
the earlier, unpublished version.
- Holloway, C. Michael. Why You Should Read Accident Reports, July
2005. Invited Talk at the 2005 FAA Software and Complex Electronic
Hardware Standardization Conference, Norfolk, Virginia.
- Johnson, Chris W. and Holloway, C. Michael. A Technique for
Showing Causal Arguments in Accident Reports. 23rd International
System Safety Conference, System Safety Society, San Diego,
California, August
2005. URL https://hdl.handle.net/2060/20050214784.
- Holloway, C. Michael and Johnson, Chris W. On the Prevalence of
Organizational Factors in Recent U.S. Transportation
Accidents. 23rd International System Safety Conference,
System Safety Society, San Diego, California, August
2005. URL https://www.cs.virginia.edu/
cmh7p/issc05-cmhcwj-ntsbanalysis.pdf, nTRS does not have this
paper available.
- Greenwell, William S.; Knight, John C.; and Holloway,
C. Michael. A Taxonomy of Fallacies in System Safety
Arguments. Technical Report CS-2005-02, University of Virginia
Department of Computer Science, December
2005. URL https://www.cs.virginia.edu/
techrep/CS-2005-02.pdf.
- Johnson, Chris W. and Holloway, C. Michael. ‘Systemic Failures’
and ‘Human Error’ in Canadian TSB Aviation Accident Reports between
1996 and 2002. HCI in Aerospace 2004, EURISCO, Toulouse,
France, September 2004,
pp. 25-32. URL https://hdl.handle.net/2060/20040139600.
- Holloway, C. Michael and Johnson, Chris W. Distribution of Causes
in Selected US Aviation Accident Reports Between 1996 and
2003. 22nd International System Safety Conference, System
Safety Society, Providence, Rhode Island, August
2004. URL https://hdl.handle.net/2060/20040085800.
- Johnson, Chris W. and Holloway, C. Michael. The ESA/NASA SOHO
Mission Interruption: Using the STAMP Accident Analysis Technique for
a Software Related ‘Mishap’. Software: Practice and
Experience, vol. 33, July 2003,
pp. 1177-1198. URL https://onlinelibrary.wiley.com/doi/10.1002/spe.544/abstract.
- Hayhurst, Kelly J. and Holloway, C. Michael. Considering Object
Oriented Technology in Aviation Applications. 22nd Digital
Avionics Systems Conference, Indianapolis, Indiana, October 12-16
2003, p. paper
3.B.1. URL https://hdl.handle.net/2060/20040034209.
- Johnson, Chris W. and Holloway, C. Michael. The Strengths and
Weaknesses of Logic Formalisms to Support the Causal Analysis of
Mishaps. 21st International System Safety Conference, System
Safety Society, Ottawa, Ontario, Canada, August 2003,
pp. 1133-1142. URL https://hdl.handle.net/2060/20040085712.
- Johnson, Chris W. and Holloway, C. Michael. A Survey of Logic
Formalisms to Support Mishap Analysis. Reliability Engineering and
Systems Safety Journal, vol. 80, no. 3, 2003,
pp. 271-291. URL https://www.sciencedirect.com/science/article/pii/S095183200300053X.
- Hayhurst, Kelly J. and Holloway, C. Michael, eds. Proceedings
of the Second Workshop on the Investigation and Reporting of Incidents
and Accidents, NASA Langley Research Center, NASA/CP-2003-212642,
Hampton, Virginia, September
2003. URL https://hdl.handle.net/2060/20030111704.
- Holloway, C. Michael and Hayhurst, Kelly J.: Software System
Safety and the NASA Aeronautics Blueprint. 21st International
System Safety Conference, G. Einarsson and B. Fletcher, eds.,
System Safety Society, Ottawa, Ontario, Canada, August 2003,
pp. 1183-1192. URL https://hdl.handle.net/2060/20040085711.
- Holloway, C. Michael. Issues in Software Safety: Polly Ann Smith
Co. v. Ned I. Ludd. 20th International System Safety
Conference, System Safety Society, Denver, Colorado, August
2002. URL https://hdl.handle.net/2060/20030013953,
an earlier version of this paper was presented at the 2nd meeting of
the U.S. Software System Safety Working Group, Cambridge, MA, 19-20
February 2002.
- Hayhurst, Kelly J. and Holloway, C. Michael. Aviation Software
Guidelines. IEEE Software, vol. 19, no. 5, September/October
2002.
- Hanks, Kim; Knight, John; and Holloway, C. Michael. The Role of
Natural Language in Accident Investigation and Reporting
Guidelines. First Workshop on the Investigation and Reporting of
Incidents and Accidents, University of Glasgow, Glasgow,
Scotland, July 2002.
- Hayhurst, Kelly J.; and Holloway, C. Michael. Challenges in
Software Aspects of Aviation Systems. 26th Annual NASA Goddard
Software Engineering Workshop, Greenbelt, Maryland, November
2001, pp. 7-13.
- Holloway, C. Michael, ed.: Lfm2000: Fifth NASA Langley Formal
Methods Workshop, NASA Langley Research Center,
NASA/CP-2000-210100, Hampton, Virginia, June
2000. URL https://hdl.handle.net/2060/20000055716.
- Holloway, C. Michael. An Overview of Why ... Because Analysis
(WBA), March 1999. A talk delivered to my branch.
- Holloway, C. Michael. Applying the Results of ’A Conditional
Resolution of the Apparent Paradox of Self-Deception’ to Research, May
1999. A talk delivered to my branch.
- Arthur, J. D.; Groner, M. K.; Hayhurst, Kelly J.; and Holloway,
C. Michael. Evaluating the Effectiveness of Independent Verification
and Validation. IEEE Computer, vol. 32, no. 10, October 1999,
pp. 79-83.
- Holloway, C. Michael. From Bridges and Rockets, Lessons for
Software Systems. 17th International System Safety
Conference, System Safety Society, Orlando, Florida, August 1999,
pp. 598-607. URL https://hdl.handle.net/2060/20040086631,
an invited presentation based on this paper was also given to the 2001
MAPLD Conference.
- Hayhurst, Kelly J.; Holloway, C. Michael; Dorsey, Cheryl A.;
Knight, John C.; Leveson, Nancy G.; McCormick, G. Frank.; and Yang,
J. C.: Streamlining Software Aspects of Certification: Technical Team
Report on the First Industry Workshop. Technical Memorandum
TM-1998-207648, NASA Langley Research Center, April
1998. URL https://hdl.handle.net/2060/19980197325.
- Holloway, C. Michael. Why Engineers Should Consider Formal
Methods. 16th AIAA/IEEE Digital Avionics Systems Conference,
Irvine, CA, vol. 1, October 1997, pp. 1.3-16 -
1.3.-22. URL https://hdl.handle.net/2060/20040105661.
- Holloway, C. Michael and Hayhurst, Kelly J., eds.: Lfm97:
Fourth NASA Langley Formal Methods Workshop, NASA Langley
Research Center, NASA Conference Publication 3356, Hampton, Virginia,
September
1997. URL https://hdl.handle.net/2060/19970029195.
- Holloway, C. Michael and Butler, Rick W.: Impediments to
Industrial Use of Formal Methods. IEEE Computer, vol. 29,
no. 4, April 1996, pp. 25-26.
- Holloway, C. Michael. Software Engineering and
Epistemology. Software Engineering Notes, vol. 20, no. 2,
April 1995.
- Holloway, C. Michael, ed. Third NASA Langley Formal Methods
Workshop, NASA Langley Research Center, NASA Conference
Publication 10176, Hampton, Virginia, June
1995. URL https://hdl.handle.net/2060/19960000026.
- Butler, R.; Caldwell, J.; Carreno, V.; Holloway, C. M.; Miner, P.;
and DiVito, B. NASA Langley’s Research and Technology Transfer Program
in Formal Methods. 10th Annual Conference on Computer Assurance
(COMPASS 95), Gaithersburg, MD, June
1995. URL https://hdl.handle.net/2060/20040111237.
- Holloway, C. Michael. Ada 95 and Safety-Critical
Software. 14th AIAA/IEEE Digital Avionics Systems Conference,
November 1995, pp. 504-509.
- Holloway, C. M.; DiVito, B.; Guaspari, D.; and Smith, M. Formal
Methods: Fact vs. Fiction, November 1994. Panel Summary and Position
Papers in TRI-Ada’94, Baltimore, Maryland.
- Butler, R. W.; DiVito, B. L.; and Holloway, C. Michael. Formal
Design and Verification of a Reliable Computing Platform for Real-Time
Control (Phase 3 Results). Technical Memorandum 109140, NASA Langley
Research Center, August
1994. URL https://hdl.handle.net/2060/19950004461.
- Holloway, C. Michael. Epistemology, Software Engineering, and
Formal Methods. The Role of Computers in Research and Development
at Langley Research Center, NASA Conference Publication 10159,
October 1994,
pp. 570-595. URL https://hdl.handle.net/2060/19950010038,
extended abstract and presentation.
- Johnson, S. J.; Holloway, C. M.; and Butler, R. W.,
eds.: Second NASA Langley Formal Methods Workshop, NASA
Langley Research Center, NASA Conference Publication 10110, Hampton,
Virginia, November
1992. URL https://hdl.handle.net/2060/19930003769.
- Holloway, C. Michael. The Syntax of Dragoon: Evaluation and
Recommendations. Technical Memorandum 4385, NASA Langley Research
Center, July
1992. URL https://hdl.handle.net/2060/19920024004.
- Holloway, C. Michael. A Survey of Functional Programming Language
Principles. Technical Memorandum 89019, NASA Langley Research Center,
September
1986. URL https://hdl.handle.net/2060/19870002073.
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