Dolotta, T. A.; Mashey, J. R. (13 October 1976). "An introduction to the Programmer's Workbench". ICSE '76: Proceedings of the 2nd international conference on Software engineering. Washington DC: IEEE Computer Society Press. pp. 164–168.
computerworld.com
Anthes, Gary (27 July 2009). "Unix Turns 40". Computerworld. Retrieved 30 June 2021.
doi.org
Canaday, Rudd H. (30 November 1965). "Two-dimensional iterative logic". Proceedings of the November 30--December 1, 1965, fall joint computer conference, Part I on XX - AFIPS '65 (Fall, part I). AFIPS '65 (Fall, part I). Las Vegas, Nevada: Association for Computing Machinery. pp. 343–353. doi:10.1145/1463891.1463931. ISBN978-1-4503-7885-7. S2CID31075319.
Canaday, Rudd H. (30 November 1965). "Two-dimensional iterative logic". Proceedings of the November 30--December 1, 1965, fall joint computer conference, Part I on XX - AFIPS '65 (Fall, part I). AFIPS '65 (Fall, part I). Las Vegas, Nevada: Association for Computing Machinery. pp. 343–353. doi:10.1145/1463891.1463931. ISBN978-1-4503-7885-7. S2CID31075319.