00567naa#a2200193#i#450# EN\\bibl\80718 20241121224854.4 2076-0655 20160325b2016####ek#y0engy0150####ca RUS RU Modifier based on zeolite-containing rocks for cement compositions Journal article Moscow Individual Entrepreneur Svetlana Vasilievna Samchenko 2016 2 с. Journal article local Kouznetsova T V Guvalov A A Abbasova S I tsilicates.ru