00599naa#a2200181#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200014300102210007000245215001000315608002700325700002200352700002100374856002200395EN\\bibl\1291420240513103559.1##a1999-5644##a20160915b2016####ek#y0engy0150####ca0#aRUS##aRU1#aCONDITIONS AND PREREQUISITES OF DEVELOPMENT OF CLUSTERS IN THE SPHERE OF YOUTH TOURISM IN THE NORTH-WEST FEDERAL DISTRICTeJournal article1#aCHERKIZOVOcRussian State University of Tourism and Serviced2016##a8 с.##aJournal article2local#1aGrishingSergey  #1aKarpovagGalina 4#arguts.editorum.ru