ŠUŇOVSKÁ, ANNA, MIROSLAV HORNÍK, MARTIN PIPÍŠKA, JURAJ LESNÝ, JOZEF AUGUSTÍN, and STANISLAV HOSTIN. 2013. “CHARACTERIZATION OF SOIL ADDITIVE DERIVED FROM SEWAGE SLUDGE”. Nova Biotechnologica Et Chimica 12 (2):141–153. https://doi.org/10.2478/nbec-2013-0016.