закон №130 от 7 октября 1977 «Совета Министров СССР». (Supreme Soviet of the SovietUnion. Article #130 of 7 October 1977 The Council of Ministers of the
Political and Economic Transition of Mongolia Since the Collapse of the SovietUnion. Journal of Third World Studies. Jan 1990, 19 (2): 205–218. JSTOR 45194063