DULOVICS, Dezső. WASTEWATER TREATMENT OF MEDIUM AND SMALL SETTLEMENTS Periodica Polytechnica Civil Engineering, [S. l.], v. 35, n. 1-2, p. 91–96, 1991. Disponível em: https://pp.bme.hu/ci/article/view/3874. Acesso em: 3 jul. 2025.