1. T. Okano, N. Yui, M. Yokoyama, R. Yoshida, Advances in Polymeric Systems for Drug Delivery, Gordon & Breach Science, Yverdon, 1994.
2. R.W. Baker, Controlled Release of Biologically Active Agents, John Wiley, 1987.
3. Polymers for controlled parenteral delivery of peptides and proteins;Heller;Adv. Drug Deliv. Rev.,1993
4. Controlled delivery of an LHRH analogue from biodegradable injectable microspheres;Sanders;J. Control. Release,1985
5. T. Okano, Y.H. Bae, S.W. Kim, Temperature responsive controlled drug delivery, in: J. Kost (Ed.), Pulsed and Self-Regulated Drug Delivery, CRC, Boca Raton, FL, 1990, pp. 17–46.