TY  - CONF
AU  - International authors
TI  - 20th International Multidisciplinary Scientific GeoConference SGEM 2020, Ecology, Environmental Economics, Education, and Legislation, Vol. 20, Issue 5.1
PY  - 2020
DO  - 10.5593/sgem2020/5.1
PB  - STEF92 Technology
ER  -