Khalaf, A. I., A. A. Ward, A. E. Abd El-Kader, and S. H. El-Sabbagh. 2015. “Effect of Selected Vegetable Oils on the Properties of Acrylonitrile-Butadiene Rubber Vulcanizates”. Polimery 60 (1):43—56. https://doi.org/10.14314/polimery.2015.043.