Nikiforova, N. A., I. L. Safronov, V. I. Stetsuk, and V. O. Momot. “Study of Covering Rocks of Novo-Dmitrovsk Deposits of Brown Coal With the Purpose of Using As Building Materials”. Science and Transport Progress , no. 40 (April 25, 2012): 135–139. Accessed April 28, 2024. https://stp.ust.edu.ua/article/view/7023.