00547naa#a2200169#i#4500001001400000005001700014011001400031100004100045101000800086102000700094200013000101210007000231215001100301608002700312700002300339856001500362EN\\bibl\495220241224235218.2##a1999-5644##a20150310b2015####ek#y0engy0150####ca0#aRUS##aRU1#aThe problem of «sustainable tourism» in science and education in Russia and abroad: a comparative analysiseJournal article1#aCHERKIZOVOcRussian State University of Tourism and Serviced2015##a11 с.##aJournal article2local#1aIlkevichgSergey 4#anaukaru.ru