Ketegenov, T., N. Khan, O. Tyumentseva, and A. Karagulanova. “The Study of Fly Ash Filler Behaviour in the Polymer Matrix of Polyethyleneterephthalate”. Chemical Bulletin of Kazakh National University, Vol. 92, no. 1, Mar. 2019, pp. 28-36, doi:https://doi.org/10.15328/cb1018.