ROMANOWSKA-DUDA, Zdzisława; GRZESIK, Mieczysław; PSZCZÓŁKOWSKI, Wiktor; PSZCZÓŁKOWSKA, Agata; WYSOKIŃSKA, Zofia. Use of Sewage Sludge in the Production of Plant Biomass for Energy: Biological and Economic Conditions. Comparative Economic Research. Central and Eastern Europe, [S. l.], v. 15, n. 3, p. 105–122, 2012. DOI: 10.2478/v10103-012-0019-5. Disponível em: https://czasopisma.uni.lodz.pl/CER/article/view/6813. Acesso em: 7 dec. 2025.