TY  - CPAPER
AU  - Maria Temelkova
AU  - Marian Varbanov
TI  - TRENDS IN THE DEVELOPMENT OF HYDRO ENERGY IN BULGARIA AFTER 1989
T2  - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Energy and Clean Technologies
PY  - 2021
SP  - 111
EP  - 118
DO  - 10.5593/sgem2021/4.1/s17.22
PB  - STEF92 Technology
ER  -