00495naa#a2200169#i#450# EN\\bibl\4745 20240516021428.4 1995-042X 20141210b2014####ek#y0engy0150####ca RUS RU A model of the customized tourism product Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 0 с. Journal article local Vapnyarskaya Olga Igorevna rguts.editorum.ru