00643naa#a2200193#i#450# EN\\bibl\101539 20251214080948.7 2076-0655 20200101b2020####ek#y0engy0150####ca RUS RU Activation of cement in the mill of the vortex type. Part 2. Changing the shape of cement particles Journal article Moscow Individual Entrepreneur Svetlana Vasilievna Samchenko 2020 5 с. Journal article local Kondrashchenko Valerii Ivanovich Titov Sergey Petrovich Kazakov Andrey Alekseevich tsilicates.ru