00479naa#a2200169#i#450# EN\INFRA-M\bibl\793 20251231010052.3 2305-7807 20120425b2012####ek#y0engy0150####ca RUS RU How to work without labour books. The German experience Journal article Moscow INFRA-M Academic Publishing LLC. 2012 4 с. Journal article local Durakova Irina B. zh-szf.ru