TY  - CPAPER
AU  - Cristian Tomescu
TI  - THE EXPLOITATION OF THE HARD COAL OF THE JIU VALLEY COALFIELD IN TERMS OF PROFITABILITY, ON THE CONCEPTS OF ENERGY SECURITY AND SOCIAL SECURITY
T2  - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Science and Technologies in Geology, Exploration and Mining
PY  - 2018
SP  - 941
EP  - 948
DO  - 10.5593/sgem2018/1.3/s03.119
PB  - STEF92 Technology
ER  -