Nemestóthy, Nándor. “ Separation of Gases by Membranes: The Effects of Pollutants on the Stability of Membranes ”. Hungarian Journal of Industry and Chemistry 45, no. 1 (November 20, 2017): 5–8. Accessed April 23, 2024. https://hjic.mk.uni-pannon.hu/index.php/hjic/article/view/hjic-2017-0002.