V. Zakamskii, J. Kanashina. ECONOMIC FEASIBILITY OF USING THE QUAD BIKES TO VISIT THE LAKES IN THE GREEN AREA OF THE CITY. 5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018, 2018, pp. 221-226. https://doi.org/10.5593/sgemsocial2018/1.4/S04.028