User contributions
- 08:37, 12 February 2012 (diff | hist) . . (+747) . . Hal Abelson (Added quotation) (top)
- 01:50, 12 February 2012 (diff | hist) . . (+32) . . Edsger W. Dijkstra (Added References section, eliminating error)
- 01:45, 12 February 2012 (diff | hist) . . (+1) . . m Edsger W. Dijkstra (→Misattributed: Added missing quotation mark)
- 01:43, 12 February 2012 (diff | hist) . . (+4) . . m Edsger W. Dijkstra (→Misattributed: added link to Hal Abelson)