Kojić, I., A. Bechtel, F. Kittinger, N. Stevanović, M. Obradović, and K. Stojanović. “Study of Pyrolysis of High Density Polyethylene in the Open System and Estimation of Its Capability for Co-Pyrolysis With Lignite”. Journal of the Serbian Chemical Society, vol. 83, no. 7-8, Aug. 2018, pp. 923-40, doi:10.2298/JSC171215027K.