00686naa#a2200181#i#450# EN\INFRA-M\bibl\37151 /en/manage/index 20250322081353.6 2500-0500 20200522b2020####ek#y0engy0150####ca RU Theoretical approaches to the study of the concept of "young family" Journal article Moscow INFRA-M Academic Publishing LLC. 2020 5 с. Journal article local Теория, методология и методы общественных наук в целом. Социография. 30 Parshina Valentina Viktorovna test.editorum.ru /en/manage/index