ZALECKAS, Ernestas; PAULAUSKAS, Valdas; SENDŽIKIENĖ, Eglė. Fractionation of heavy metals in sewage sludge and their removal using low-molecular-weight organic acids. Journal of Environmental Engineering and Landscape Management, [S. l.], v. 21, n. 3, p. 189–198, 2013. DOI: 10.3846/16486897.2012.695734. Disponível em: https://journals.vilniustech.lt/index.php/JEELM/article/view/1931. Acesso em: 10 may. 2025.