00578naa#a2200193#i#450# EN\\bibl\6587 20250110010158.5 1993-7768 20150828b2015####ek#y0engy0150####ca RUS RU The development of caravanning in the region: problems of modeling Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 8 с. Journal article local Ulyanichenko Lyudmila Gladskaya Inna Vinogradova Marina zh-szf.ru