Cipher telegram from Soviet Plenipotentiary Representative in Bulgaria A. Lavrishchev to Soviet People’s Commissar of Foreign Affairs V. Molotov about the refusal of the Bulgarian government to sign a mutual assistance treaty with the USSR

30 November 1940
Archive of Foreign Policy of the Russian Federation
Coll. 059, ser. 1, box 331, fold. 2272, ff. 192–196.

Certified copy