TY  - CPAPER
AU  - Georgi Zhelezov
TI  - CHEMICAL PECULIARITIES OF THE WATER RECOURSES IN THE UPPER PART OF OGOSTA RIVER CATCHMENTS, NORTHWESTERN BULGARIA
T2  - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Ecology, Economics, Education and Legislation
PY  - 2021
SP  - 43
EP  - 50
DO  - 10.5593/sgem2021/5.1/s20.011
PB  - STEF92 Technology
ER  -