@article{Gavrilenko2015application,
author={Gavrilenko, A.. and Zakrevskaya, L.V. and Dvornikov, R..},
title={Application of mathematical calculations of the packing density of the spheres to the composition of lightweight concrete},
journal={Actual directions of scientific researches of the XXI century: theory and practice},
publisher={FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov},
year={2015},
pages={386-389},
volume={3},
issue={7},
}