Adžiski, R., Fidančevska, E., Angjuševa, B., Vassilev, V. and Miloševski, M. (2008) “Obtaining porous quartz sand–glass composite for production of diffusers for water aeration”, Macedonian Journal of Chemistry and Chemical Engineering, 27(1), pp. 35–40. doi: 10.20450/mjcce.2008.244.