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Oksana S. Dzyuba
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of Russian Academy of Sciences, Academician Koptyug Avenue 3, Novosibirsk 630090, Russia;
Anna A. Goryacheva
Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of Russian Academy of Sciences, Academician Koptyug Avenue 3, Novosibirsk 630090, Russia;
Dmitry A. Ruban
Victoria V. Gnezdilova
Department of Tourism, Higher School of Business, Southern Federal University, 23-ja linija Street 43, Rostov-na-Donu 344019, Russia
Pavel P. Zayats
Camp for Practice and Educational Tourism ’Belaja Retchka’, Southern Federal University, Nikel’ (Dakhovskaja Post Office), Majkop District, Republic of Adygeja 385792, Russia