00563naa#a2200169#i#450# EN\INFRA-M\bibl\51479 20241211190019.3 2500-333X 20220630b2022####ek#y0engy0150####ca RU Problems of the content of the category «Labor» as an object of pension legal relations Journal article Moscow INFRA-M Academic Publishing LLC. 2022 9 с. Journal article local Право. Юридические науки. 34 Ivanyuzhenko A. B. zh-szf.ru