IDF curved structures: Villa Olga and Santa Isabel waste treatment plants - municipality of Cúcuta - Colombia. REVISTA AMBIENTAL AGUA, AIRE Y SUELO, [S. l.], v. 2, n. 2, p. 80–94, 2007. DOI: 10.24054/aaas.v2i2.2042. Disponível em: https://ojs.unipamplona.edu.co/index.php/aaas/article/view/2042. Acesso em: 16 oct. 2025.