„The Level of Noise Pollution in University Campuses Administered by the University of 1 December 1918 in Alba Iulia“, Ann_UGAL_MMS, Bd. 39, Nr. 4, S. 58–60, Dez. 2016, Zugegriffen: Nov. 02, 2026. Verfügbar unter: https://ojs.ugal.ro/index.php/mms/article/view/1227