ȚUGUI, Claudia G., et al. “Detection of Beta-Lactamase Resistance Genes in a Hospital Chlorinated Wastewater Treatment System”. Studia Universitatis Babeș-Bolyai Biologia, vol. 60, no. Sp.Issue, Dec. 2015, pp. 33-38, https://studia.reviste.ubbcluj.ro/index.php/subbbiologia/article/view/4623.