Sieghart, W: Pharmacological Reviews, Williams and Wilkins Inc., Baltimore, MD, US, vol. 47, No. 2, 1995, pp. 181-234, ISSN; 0031-6997. |
Teuber, L et al: Current Pharmaceutical Design, Bentham Science Publishers, vol. 5, 1999, pp. 317-343 ISSN: 1381-6128. |
Tully, R. et al: Drug Development Res., vol. 22, 1991, pp. 299-308, New York. |
Zhang, P et al: Medicinal Chemistry Research, Birkhaeuser, Boston, US, vol. 5, No. 7, 1995, pp. 487-495, ISSN; 1054-2523. |
Martin et al., Expert Opinion On Therapeutic Patents, Ashley Publications, GB, vol. 9, No. 10, 1999, pp. 1347-1358. |