SAVA, C.; DRĂGAN, I.; STROE, A. M.; PIRĂU, L. C.; PICĂ, E. M. 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, v. 39, n. 4, p. 61-63, 15 dez. 2016.