PARKINSON, F. W. Christopher Andrew and Oleg Gordievsky, Instructions from the Centre: Top Secret Files on KGB Foreign Operations, 1975-1985. Journal of Conflict Studies, [S. l.], v. 13, n. 2, 1993. Disponível em: https://journals.lib.unb.ca/index.php/JCS/article/view/15123. Acesso em: 7 may. 2024.