00649naa#a2200193#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200008300102210007000185215001000255608002700265686008900292700002400381700002400405856002600429EN\\bibl\2085520240420092438.6##a1993-7768##a20180504b2018####ek#y0engy0150####ca0#aRUS##aRU1#a«Shady» business in tourism and economic security of RussiaeJournal article1#aCHERKIZOVOcRussian State University of Tourism and Serviced2018##a6 с.##aJournal article2local##aТуристско-экскурсионное обслуживание. 71.372grnti#1aChirkovgDmitrii K.#1aChirkovagYuliya B.4#aphilosoph.editorum.ru