J. Fuegi; J. Francis (2003 m. spalis-lapkritis), „Lovelace & Babbage and the creation of the 1843 'notes'“, Annals of the History of Computing, 25 (4): 16, 19, 25, doi:10.1109/MAHC.2003.1253887{{citation}}: Patikrinkite date reikšmes: |date= (pagalba)
„ISO/IEC 2382:2015“. ISO. 2020-09-03. Suarchyvuota iš originalo 2016-06-17. Nuoroda tikrinta 2022-05-26. „[Software includes] all or part of the programs, procedures, rules, and associated documentation of an information processing system.“
„ISO/IEC 2382:2015“. ISO. 2020-09-03. Suarchyvuota iš originalo 2016-06-17. Nuoroda tikrinta 2022-05-26. „[Software includes] all or part of the programs, procedures, rules, and associated documentation of an information processing system.“