00535naa#a2200181#i#450# EN\\bibl\6173 20240521124921.2 1995-042X 20150625b2015####ek#y0engy0150####ca RUS RU Study of the legal basis of housing mortgage Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 8 с. Journal article local Bugrova Valentina Malygina Anna service-rusjournal.editorum.ru