Selvage, Douglas (1 жовтня 2019). Operation "Denver": The East German Ministry of State Security and the KGB's AIDS Disinformation Campaign, 1985–1986 (Part 1). Journal of Cold War Studies. 21 (4): 71—123. doi:10.1162/jcws_a_00907. ISSN1520-3972.
Selvage, Douglas (1 жовтня 2019). Operation "Denver": The East German Ministry of State Security and the KGB's AIDS Disinformation Campaign, 1985–1986 (Part 1). Journal of Cold War Studies. 21 (4): 71—123. doi:10.1162/jcws_a_00907. ISSN1520-3972.