A. M. Kostryukova, G. A. Korchagina, V. V. Trofimenko. "PEDAGOGICAL CONDITIONS OF RECREATION AND ECOLOGICAL TEACHING TOURISM STUDENTS." 4th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2017 (2017): 383-390. https://doi.org/10.5593/sgemsocial2017/35/S13.050