M. E. Ms., O. Am., W. Ma., T. Tm., A. E. Ms., and I. Sa., “NOVEL SMART pH SENSITIVE CHITOSAN GRAFTED ALGINATE HYDROGEL MICROCAPSULES FOR ORAL PROTEIN DELIVERY: II. EVALUATION OF THE SWELLING BEHAVIOR”, Int J Pharm Pharm Sci, vol. 7, no. 11, pp. 331–337, Oct. 2015.