@ARTICLE{StrzaƂkowska_Ewa_Variability_2017, author={StrzaƂkowska, Ewa}, number={No 1}, journal={Archives of Mining Sciences}, howpublished={online}, year={2017}, publisher={Committee of Mining PAS}, title={Variability Qualitative Phase Composition of the Different Grain Classes of the Calcareous Fly Ashes}, URL={http://journals.pan.pl/Content/105572/PDF/10267-Volume62_Issue1-17_paper.pdf}, doi={10.1515/amsc-2017-0017}, }