00616naa#a2200181#i#450# EN\\bibl\12146 20240513031151.1 1995-042X 20160921b2016####ek#y0engy0150####ca RUS RU Improving the system of professional retraining of personnel under conditions of campsites infrastructure formation Journal article CHERKIZOVO Russian State University of Tourism and Service 2016 13 с. Journal article local Mukhamedzhanova Olga Ermakov Aleksandr service-rusjournal.editorum.ru