TY - CPAPER AU - Anna Konstanciak TI - EVALUATION OF AIR QUALITY IN CHOSEN CITIES OF THE SILESIA REGION IN POLAND DURING WINTER 2016-2017 T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2017 17th International Multidisciplinary Scientific GeoConference PY - 2017 SP - 353 EP - 360 DO - 10.5593/sgem2017/53/s21.044 PB - STEF92 Technology ER -