Fuentes consultadas1. WWW SUDOC, 09/01/2024 Encabezamiento (Wiener, Friedrich) 146484207 http://www.idref.fr/146484207/id
2. Army, navy and air force uniforms of the Warsaw Pact, 1978 Portada (Friedrich Wiener)
3. The armies of the Warsaw Pact nations, 1981 Portada (Friedrich Wiener; obit.) p. 6 (Dr.)