Puts, G.J., and P.L. Crouse. 2014. “The Effect of Copper- and Nickel Based Catalysts on the Pyrolysis of Polytetrafluoroethylene”. Suid-Afrikaans Tydskrif Vir Natuurwetenskap En Tegnologie / <i>South African Journal of Science and Technology</I&gt; 33 (1), 2 bladsye. https://doi.org/10.4102/satnt.v33i1.1208.