00561naa#a2200181#i#450# EN\\bibl\11919 20240616101712.7 1995-042X 20160616b2016####ek#y0engy0150####ca RUS RU Optimizing the placement of camping camping on the criterion of efficiency and safety Journal article CHERKIZOVO Russian State University of Tourism and Service 2016 9 с. Journal article local Ermakov Aleksandr Cherepanov Daniil naukaru.ru