Badea, Catalin, Iures, Liana, Dan, Sorin (2013). THE RECYCLING OF FLY ASH TO OBTAIN BUILDING MATERIALS. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on ENERGY AND CLEAN TECHNOLOGIES, 473 - 478 pp. https://doi.org/10.5593/sgem2013/bd4/s18.025