Borisovich Glazyrin, Andrei, et al. “The Influence of Conditions of Secondary Propylene Recycling in the Presence of Vegetable Fillers on Thermal Properties of Polymer Composites”. International Journal of Engineering & Technology, vol. 7, no. 4.38, Dec. 2018, pp. 1122-4, https://doi.org/10.14419/ijet.v7i4.38.27655.