Epoyan, Stepan, Andrey Karahiaur, Vladlen Volkov, and Svetlana Babenko. “Research into the Influence of Vertical Drainage Elements on the Operational Efficiency of Rapid Filters”. Eastern-European Journal of Enterprise Technologies 1, no. 10 (91) (February 14, 2018): 62–69. Accessed April 27, 2024. https://journals.uran.ua/eejet/article/view/123559.