00573naa#a2200181#i#450# EN\\bibl\6901 20240430103902.2 1995-0411 20150904b2015####ek#y0engy0150####ca RUS RU Inter-regional collaboration as the factor of educational tourism development in Yaroslavl region Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 5 с. Journal article local Guseynova Alena Morozova Vera rguts.editorum.ru