@article{Min’ko2014substandard, author={Min’ko, N.I. and Yakh’ya, M.. and Kemenov, S.A.}, title={Substandard sand in the technology of glass materials for construction purposes}, journal={Technique and technology of silicates}, publisher={Individual Entrepreneur Svetlana Vasilievna Samchenko}, year={2014}, pages={26-29}, volume={21}, issue={3}, }