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References
- ↑ Murphy, Dan (October–December 2009). "The Beginnings of TECO" (PDF). IEEE Annals of the History of Computing. 31 (4): 110–115. doi:10.1109/mahc.2009.127. S2CID 18805607.
- ↑ Monnier, Stefan; Sperber, Michael (June 2020). "Evolution of Emacs Lisp". Proceedings of the ACM on Programming Languages. 4 (HOPL): 74:1–74:55. doi: 10.1145/3386324 .
- 1 2 Murphy, Dan (1996). "Origins and Development of TOPS-20" . Retrieved April 17, 2011.
- ↑ Spicer, Dag (April–June 2016). "Raymond Tomlinson: Email Pioneer, Part 1". IEEE Annals of the History of Computing. 38 (2): 72–79. doi:10.1109/MAHC.2016.25. S2CID 3227400.
- ↑ Pelkey, James (2007). "Arpanet: 1969–1972: The Beginnings of Computer Networks". Entrepreneurial Capitalism and Innovation: A History of Computer Communications 1968–1988 . Retrieved 2020-10-06.
