Demchenko, V., Simyachko, O. and Svidersky, V. 2017. Research of mineralogical composition, structure and properties of the surface of Ukrainian ash microspheres. Technology audit and production reserves. 6, 1(38) (Nov. 2017), 28–34. DOI:https://doi.org/10.15587/2312-8372.2017.118958.