00571naa#a2200181#i#450# EN\\bibl\4931 20240503154030.5 1995-0411 20150311b2015####ek#y0engy0150####ca RUS RU Clustering of Crimean desnaons in the legal environment of Russia Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 9 с. Journal article local Vasilenko Valentin Aleksandrovich Vasilenko Aleksandr spst-journal.editorum.ru