Győri, Z., N. Boros, P. Sipos, E. Bertáné Szabó, K. Kovács, M. Horváth, A. Takács, and G. Heltai. “Heavy Metal Balance in a Communal Wastewater Treatment Plant”. Hungarian Journal of Industry and Chemistry, vol. 43, no. 1, June 2015, pp. 19-23, doi:10.1515/hjic-2015-0004.