Oyarce, E., G. del C. Pizarro, D. Oyarzún, C. Zúñiga, and J. Sanchez. “HYDROGELS BASED ON 2-HYDROXYETHYL METHACRYLATE: SYNTHESIS, CHARACTERIZATION AND HYDRATION CAPACITY”. Journal of the Chilean Chemical Society, Vol. 65, no. 1, Mar. 2020, pp. 4682-5, https://www.jcchems.com/index.php/JCCHEMS/article/view/1379.