VABOLIENE, Giedre; MATUZEVIČIUS, Algirdas Bronislovas. Investigation into biological nutrient removal from wastewater. Journal of Environmental Engineering and Landscape Management, [S. l.], v. 13, n. 4, p. 177–181, 2005. DOI: 10.3846/16486897.2005.9636868. Disponível em: https://journals.vilniustech.lt/index.php/JEELM/article/view/8059. Acesso em: 2 jun. 2025.