TY - CPAPER AU - Tomas Kral AU - Andrea Mokrosova AU - doc.Pavel Zapletal AU - Aneta Landecka TI - BASIC CHARACTERISTICS OF FANS USED IN UNDERGROUND SPACES T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining PY - 2017 SP - 101 EP - 108 DO - 10.5593/sgem2017/13/s03.014 PB - STEF92 Technology ER -