TY - CPAPER AU - Stanisław Nagy TI - CLASSIFICATIONS AND METHODOLOGIES OF RESERVES CALCULATION IN UNCONVENTIONAL TIGHT/SHALE GAS RESERVOIRS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining PY - 2019 SP - 705 EP - 712 DO - 10.5593/sgem2019/1.2/s06.089 PB - STEF92 Technology ER -