Florin-Gabrie Popescu (2013). REDUCING ENERGY CONSUMPTION BY MODERNIZING DRIVES OF HIGH CAPACITY EQUIPMENT USED TO EXTRACT LIGNITE. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on ENERGY AND CLEAN TECHNOLOGIES. https://doi.org/10.5593/sgem2013/bd4/s17.024