K. MARKOVICH, “AN ASSESSMENT OF CHANGE OF GRAVITY ACCELERATION, THE CAUSED OF FLUCTUATIONS OF LEVEL SURFACES AS A RESULT OF FILLING OF POLOTSK HYDROELECTRIC POWER STATION RESERVOIR”, Вестник Полоцкого государственного университета. Серия F. Строительство. Прикладные науки, no. 8, pp. 156-159, Jul. 2016.