Corbató, Fernando J.; Merwin Daggett, Marjorie; Daley, Robert C. (May 3, 1962). "An Experimental Time-Sharing System". Proceedings of the May 1-3, 1962, spring joint computer conference (AIEE-IRE '62 (Spring)). Association for Computing Machiner. pp. 335–344. doi:10.1145/1460833.1460871. ISBN9781450378758. S2CID234039583.
Corbató, Fernando J.; Merwin Daggett, Marjorie; Daley, Robert C. (May 3, 1962). "An Experimental Time-Sharing System". Proceedings of the May 1-3, 1962, spring joint computer conference (AIEE-IRE '62 (Spring)). Association for Computing Machiner. pp. 335–344. doi:10.1145/1460833.1460871. ISBN9781450378758. S2CID234039583.