TY JOUR TI COMPARATIVE ANALYSIS OF THE HISTORY OF DEVELOPMENT OF THE MARRIAGE IN FACT INSTITUTE IN RUSSIA AND THE USA KW marriage in fact KW de facto partner KW de facto marriage KW concubinage KW cohabitation of men and women KW common law marriage KW children of unwed parents KW comparative analysis KW matrimonial relations. JO Journal of Foreign Legislation and Comparative Law AU Nazarova, A.. PY 2016 IS 1 PB Legal publishing house Norm