V. Ugrinovic, A. Radisavljevic, M. Markovic, V. Panic, and D. Veljovic, “Semi-interpenetrating network hydrogels based on poly(methacrylic acid) and natural polymers gelatin, chitosan, and alginate, for potential biomedical applications”, Maced. J. Chem. Chem. Eng., vol. 44, no. 1, pp. 67–81, Jun. 2025.