Eugenia Tigan, Oana Brinzan, Monica Lungu, Anda Ioana Milin (2017). CASE STUDY ON PEOPLE'S PERCEPTIONS OF AIR QUALITY. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2017 17th International Multidisciplinary Scientific GeoConference, 225-232. https://doi.org/10.5593/sgem2017/53/s21.028