1. Pulsatile drug delivery systems using hydrogels;Yoshida;Adv. Drug Deliv. Rev.,1993
2. Biodegradable hydrogels in drug delivery;Kamath;Adv. Drug Deliv. Rev.,1993
3. Biodegradable Hydrogels For Drug Delivery;Park,1993
4. K. Park, H. Park, Smart Hydrogels, in: J.C. Salamone (Ed.), Concise Polymeric Materials Encyclopedia, CRC Press, Boca Raton, 1999, pp. 1476–1478.
5. A.S. Hoffman, Intelligent Polymers, in: K. Park (Ed.), Controlled Drug Delivery: Challenge and Strategies, American Chemical Society, Washington, DC, 1997, pp. 485–497.