Bihun-Kisiel, Anna, and Wioletta Ochędzan-Siodłak. “Vanadium Catalysts for Ethylene-Norbornene. Copolymerization”. Polimery, vol. 65, no. 11-12, Dec. 2020, pp. 757-70, doi:10.14314/polimery.2020.11.2.