00693naa#a2200205#i#450# EN\\bibl\4020 20250403210138.4 1999-5644 20141203b2014####ek#y0engy0150####ca RUS RU Contemporary approaches to curriculum optimization for the educational programs of the academic bachelor in tourism Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 9 с. Journal article local Shtremberg Per Ilkevich Sergey Kharitonova Tatyana Viktorovna Sakharchuk Elena Sergeevna vestnik-rguts.editorum.ru