Robust regulation of an anaerobic wastewater treatment model. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 108, p. 47–76, 2021. DOI: 10.60063/gsu.fmi.108.47-76. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/548. Acesso em: 16 dec. 2025.