00535naa#a2200169#i#450# EN\\bibl\5877 20240504224214.6 1999-5644 20150615b2015####ek#y0engy0150####ca RUS RU The methodology of research and state of the tourist route network in Russia Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 4 с. Journal article local Sarancha Mikhail Aleksandrovich rguts.editorum.ru