Gražinskas, K., Mažeikienė, A. and Valentukevičienė, M. (2014) “Experimental research on removing suspended solids and ammonium ions from sludge liquor”, Mokslas – Lietuvos ateitis / Science – Future of Lithuania, 6(4), pp. 451-455. doi: 10.3846/mla.2014.63.