Peter Seibel (20 January 2014)
Internet Article 1
Donald Knuth in ACM Turing Award Lecture (1974)
Speech 1
Peter Knego in Peter's Blog: About Coding and Stuff (06/13/2011)
Blog 1
Various (September 20, 2010)
Wiki 1
Jay Fields in Jay Fields' Thoughts (March 31, 2009)
Blog 1
Allen Downey (April 26, 2017)
Blog 1
