@book{Gavrov2009, author = {Gavrov, Sergej Nazipovič}, year = {2009}, isbn = {5-87055-108-0}, language = {rus}, copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen}, title = {Историческое изменение институтов семьи и брака}, url = "http://dx.doi.org/10.17169/refubium-18559", }