“Treatment of Ammonia Wastewater by Ultrasound. Part I: The Influence of the Ultrasound Energy on the Ultrasound Bath Temperature”, Ann_UGAL_MMS, vol. 38, no. 4, pp. 27–31, Dec. 2015, Accessed: Nov. 02, 2026. Available: https://ojs.ugal.ro/index.php/mms/article/view/1288