00674naa#a2200193#i#450# EN\\bibl\6320 20260310194258.2 1995-042X 20150722b2015####ek#y0engy0150####ca RUS RU Improvement of programs of additional professional education in the sphere of service and housing and communal services taking into account requirements of modern labor market Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 0 с. Journal article local Golubev Andrey Golubev Oleg Sumzina Larisa zh-szf.ru