https://studref.com/400617/informatika/perspektivy_razvitiya_interneta
https://ru.wikipedia.org/wiki/%D0%98%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%8F_%D0%98%D0%BD%D1%82%D0%B5%D1%80%D0%BD%D0%B5%D1%82%D0%B0
https://foxford.ru/wiki/informatika/internet-istoriya-razvitie
https://scask.ru/a_book_history.php?id=20