A. Kharlampieva, E. Maklakova, E. Zhigunov. "THE MODERN MARKET OF HOTEL SERVICES OF SAINT PETERSBURG AGGLOMERATION." 5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018, 2018, pp. 817-824. https://doi.org/10.5593/sgemsocial2018/1.4/S04.105