TY - CPAPER AU - VladimĂ­r Adamec TI - OCCURRENCE OF THE ULTRAFINE PARTICLES IN THE WORKING ENVIRONMENT AND THEIR POSSIBLE RISKS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Nano, Bio, Green and Space: Technologies for Sustainable Future PY - 2019 SP - 25 EP - 32 DO - 10.5593/sgem2019v/6.3/s07.004 PB - STEF92 Technology ER -