« Reducing the Sludge Quantity Produced from Used Water Purification – A Source of Profit ». The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science 39, no. 4 (décembre 15, 2016): 61–63. Consulté le novembre 2, 2026. https://ojs.ugal.ro/index.php/mms/article/view/1228.