1. R.J. Lefkowitz, Ann. Rep. Med. Chem. 15, 217 (1980).
2. P. N. Patil, D. D. Miller, and U. Trendelenburg, Pharmacol. Rev. 26, 323 (1974)
3. R. R. Ruffolo, Jr., in: Stereochemistry and Biological Activity of Drugs (E. J. Ariëns, W. Soudijn, and P. B. M. W. M. Timmermans, eds.), p. 103, Blackwell, Oxford (1983).
4. C. O. Rutledge, D. E. Walters, and G. L. Grunewald, in: Handbook of Stereoisomers: Drugs in Psychopharmacology (D. F. Smith, ed.), p. 79, CRC Press, Boca Raton (1984).
5. P. B. M. W. M. Timmermans and M. J. M. C. Thoolen, in: Handbook of Stereoisomers: Therapeutic Drugs (D. F. Smith, ed.), p. 13, CRC Press, Boca Raton (1989).