Jaromír Marek and  Jakub Wiener and  Yan Wang,  Nanofibrous Ion Exchangers.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2014, vol. 88(4). 336 - 338
    [viewed 06 April 2020]. Available from: https://publications.waset.org/pdf/9998172.