@article{Kotov2013highly,
author={Kotov, S.V. and Sivkov, S.P.},
title={Highly effective grinding aids for portland cement with added mineral additives},
journal={Technique and technology of silicates},
publisher={Individual Entrepreneur Svetlana Vasilievna Samchenko},
year={2013},
pages={16-20},
volume={20},
issue={4},
}