MIKHALKOV, D., and V. MIKHALKOV. “ANALYSIS OF POSSIBILITY OF USE OF RAW MATERIALS OF BELARUS FOR OBTAINING ENERGY-EFFICIENT BUILDING DESIGN”. Vestnik of Polotsk State University. Part F. Constructions. Applied Sciences, no. 8, June 2017, pp. 19-27, https://journals.psu.by/constructions/article/view/1304.