„Reducing the Sludge Quantity Produced from Used Water Purification – A Source of Profit“ (2016) The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 39(4), S. 61–63. Verfügbar unter: https://ojs.ugal.ro/index.php/mms/article/view/1228 (Zugegriffen: 2 November 2026).