Gołaszewski, Jacek, Tomasz Ponikiewski, Aleksandra Kostrzanowska-Siedlarz, and Patrycja Miera. 2021. “Technological Aspects of Usage of Calcareous Fly Ash As a Main Constituent of Cements”. Periodica Polytechnica Civil Engineering 65 (2):619-37. https://doi.org/10.3311/PPci.11164.