Intersystem approach to studying of contribution of museums in Eastern Siberia to cultural life in 1945-1990

The article is devoted to the methodological issues of the study of the history of museums in East Siberia. It considers the problem of applying an intersystem approach to studying of the contribution of museums in Eastern Siberia to the cultural life. This allows identifying the extent of the penetration of museum culture in the various sectors of social and cultural life, in the areas of the regulated and unregulated social activity, in the personal culture.