„Treatment of Ammonia Wastewater by Ultrasound. Part I: The Influence of the Ultrasound Energy on the Ultrasound Bath Temperature“, Ann_UGAL_MMS, Bd. 38, Nr. 4, S. 27–31, Dez. 2015, Zugegriffen: Nov. 02, 2026. Verfügbar unter: https://ojs.ugal.ro/index.php/mms/article/view/1288