00505naa#a2200169#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200008100102210007000183215001000253608002700263700002300290856002200313EN\\bibl\1216120240516235629.4##a1995-042X##a20160921b2016####ek#y0engy0150####ca0#aRUS##aRU1#aTourism product differentiation within the domestic tourismeJournal article1#aCHERKIZOVOcRussian State University of Tourism and Serviced2016##a9 с.##aJournal article2local#1aKonovalovagElena 4#arguts.editorum.ru