Goebbels

АВП РФ. Ф. 059. Оп. 1. П. 340. Д. 2327. Л. 188–189.
Cipher telegram from Soviet Plenipotentiary Representative in Turkey S. Vinogradov to the Soviet People’s Commissariat of Foreign Affairs about his conversation with Yugoslavian Ambassador to Turkey I. Shumenkovich regarding Germany’s invasion of Yugoslavia and Greece
6 April 1941
Archive of Foreign Policy of the Russian Federation
Coll. 059, ser. 1, box 340, fold. 2327, ff. 189–188.

Certified copy