Horuzhy, P, S Stasiuk, and Ya Mosiychuk. “Method of Engineering Calculations of Bioreactors for Biological Treatment of Natural Water and Advanced Treatment of Sewage”. Land Reclamation and Water Management 107, no. 1 (June 25, 2018): 5 - 16. Accessed May 21, 2019. http://mivg.iwpim.com.ua/index.php/mivg/article/view/121.