Król, P., and B. Król. “Polyurethane Ionomers. Part I. Preparation, Structure, Properties and Application of Anionic Polyurethane or Polyurethane-Acrylic Dispersions”. Polimery, vol. 49, no. 7-8, Sept. 2022, pp. 530-4, https://ichp.vot.pl/index.php/p/article/view/1781.