TY  - CPAPER
AU  - P. Natalia
AU  - F. Alexander
AU  - V. Olga
AU  - K. Tatiana
TI  - VOLUNTEERING: TRENDS OF DEVELOPMENT IN ECOLOGICAL TOURISM
T2  - 5th International Multidisciplinary Scientific Conference on Social Sciences and Arts SGEM 2018
PY  - 2018
SP  - 937
EP  - 944
DO  - 10.5593/sgemsocial2018/1.3/S04.116
PB  - STEF92 Technology
ER  -