https://en.wikipedia.org/wiki/MIT_Computer_Science_and_Artificial_Intelligence_Laboratory#Project_MAC
https://en.wikipedia.org/wiki/Kotok-McCarthy
https://archive.org/stream/reportonarttechn00losa_/reportonarttechn00losa
https://en.wikipedia.org/wiki/Jackson_Mac_Low
http://www.softwarepreservation.org/projects/LISP/lisp2/Fredkin-Proposal-LISP_II_Programming_System.pdf
http://www.historyofcomputercommunications.info/Book/8/8.5-ConcordDataSystems.html
http://www.bostonmagazine.com/2006/05/the-fifty-families-part-1/
https://wikileaks.org/plusd/cables/09MOSCOW1340_a.html
http://www.legacy.com/obituaries/nytimes/obituary.aspx?pid=155689229
http://www.nytimes.com/1991/01/27/business/fidelity-s-secret-agent-man.html
https://staroobrad.ru/modules.php?name=News2&file=article&sid=1149
http://www.pcweek.ru/infrastructure/article/detail.php?ID=42851
http://www.basic.visual2000.ru/kolesov/connect/cn97071.htm
http://www.pcweek.ru/business/article/detail.php?ID=58695
https://roem.ru/28-03-2016/221532/fenoti-yandex/