TY - CPAPER AU - A. Serafinceanu AU - M. C. Melczer AU - A. Soare AU - GEROM AU - S.A. INVEST TI - STEPPING BEAM SUPPORTS TYPE GEROM-GP 250/1200 AT THE FACECOALS WITH SUBMINATION OF THE COAL BANKS FROM THE COAL BASIN IN JIU VALLEY - ROMANIA T2 - 6th International Scientific Conference - SGEM PY - 2006 SP - 233 EP - 238 PB - SGEM Scientific GeoConference ER -