00566naa#a2200181#i#450# EN\\bibl\5536 /en/manage/index 20250127192245.1 1995-042X 20141224b2014####ek#y0engy0150####ca RUS RU Contract enforcement for the contract for government needs Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 11 с. Journal article local Chernyakova Svetlana Aleksandrovna fht.editorum.ru /en/manage/index