"Douglas McIlroy". HOPL: Online Historical Encyclopaedia of Programming Languages. Archived from the original on 2020-08-03. Retrieved 2020-09-01.
ncl.ac.uk
homepages.cs.ncl.ac.uk
Макілрой, Малкольм Дуглас (January 1969). "Mass produced software components"(PDF). Software Engineering: Report of a conference sponsored by the NATO Science Committee, Garmisch, Germany, 7-11 Oct. 1968. Scientific Affairs Division, NATO. p. 79. Archived from the original(PDF) on 2014-05-31. Retrieved 2014-09-10.
Макілрой, Малкольм Дуглас (January 1969). "Mass produced software components"(PDF). Software Engineering: Report of a conference sponsored by the NATO Science Committee, Garmisch, Germany, 7-11 Oct. 1968. Scientific Affairs Division, NATO. p. 79. Archived from the original(PDF) on 2014-05-31. Retrieved 2014-09-10.