SinelnikovA.B.Country: RussiaCity: MoscowCompany: Moscow State University named after MV Lomonosov, 119991, Russian Federation, Moscow, Leninskie gory, 1Position: Associate professor at the department of family sociology and demographyScientific degree: Candidate of economic sciencesE-mail: sinelka@mail.ru Author's articles Marriage and Divorce in Russia in the View of Formal and Informal Social Regulations