D. Koroteev, Dmitry, Makhmud Kharun, Nadezhda A. Stashevskaya, and . 2018. “Materials and Construction of Transparent Cover of Formwork for Heat Treatment of Concrete With Employment of Solar Energy”. International Journal of Engineering & Technology 7 (3.7): 299-302. https://doi.org/10.14419/ijet.v7i3.7.16396.