00566naa#a2200193#i#450# EN\\bibl\80707 20241105012144.2 2076-0655 20151225b2015####ek#y0engy0150####ca RUS RU Determination of the cement gel parameters using pycnometric method Journal article Moscow Individual Entrepreneur Svetlana Vasilievna Samchenko 2015 4 с. Journal article local Gordeev E V Zakharova N A Indeykin E A tsilicates.ru