1. B. Honig: Ann. Rev. Phys. Chem. 29, 31 (1978).
2. B. Honig: Curr. Top. Membr. Transf. 16, 371 (1982).
3. M. Ottolenghi: The Photochemistry of Rhodopsin (Advances in Photochemistry, v. 12, Ed. J-N. Pitts, Jr., G. S. Hammond, K. Gollnick, and D. Grosjean), pp. 97–200. Wiley (1980).
4. R. R. Birge: Ann. Rev. Biophys. Bioeng. 10, 315 (1981).
5. R. Uhl and E. W. Abrahamson: Chem. Rev. 81, 291 (1981).