Toktabayeva, A., M. Yakiyayeva, and G. Mun. “Complex Formation of 2-Hydroxyetylakrylate and Methylmethacrylate Copolymer Gels With Water Solutions of Polyacrylic Acid”. Chemical Bulletin of Kazakh National University, Vol. 65, no. 1, Mar. 2012, pp. 411-6, doi:https://doi.org/10.15328/chemb_2012_1411-416.