Kovalenko, O. “MODERN HYDROACTIVE POLYURETHANE FOR RESTORATION OF WATERPROOFING CAPABILITY OF HYDROTECHNICAL STRUCTURES”. Land Reclamation and Water Management, no. 1 (July 22, 2019). Accessed September 20, 2019. http://mivg.iwpim.com.ua/index.php/mivg/article/view/155.