https://www.scirp.org/reference/ReferencesPapers?ReferenceID=1529163
Gordon, V.O. and Sement Sov, M.A. (1980) A Course in Descriptive Geometry. Mir Publishers, Moscow....
Gordon, V.O. and Sement Sov, M.A. (1980) A Course in Descriptive Geometry. Mir Publishers, Moscow.
https://www.ceicdata.com/en/belarus/industrial-production-by-product-annual/industrial-production-portland-cement-calcium-aluminate-sement-slag-cement--similar-hydraulic-cements
Belarus Industrial Production: Portland Cement, Calcium Aluminate Sement, Slag Cement & Similar...
industrial productionportland cementcalcium aluminatebelarussement