%0 Journal Article %T Substandard sand in the technology of glass materials for construction purposes %A Min’ko, N.I. %A Yakh’ya, M.. %A Kemenov, S.A. %K raw materials, substandard sand, enrichment, building glass %J Technique and technology of silicates %D 2014 %N 21 %P 3 %I Individual Entrepreneur Svetlana Vasilievna Samchenko