Dubovskaia, Polina I., et al. “Gel-Phase Synthesis and PH-Sensitive Swelling-Structure Relationships of N-Carboxyethylchitosan”. EURASIAN JOURNAL OF CHEMISTRY, vol. 30, no. 2(118), June 2025, pp. 19-33, doi:10.31489/2959-0663/2-25-6.