1. Scheidt, W. R., Lee, Y. J., Tamai, S. and Hatano, K., J. Am. Chem. Soc., 1983, 105, 778.
2. Ellison, M. K., Nasri, H., Xia, Y.-M., Marchan, J. C., Schultz, C. E., Debrunner, P. G. and Scheidt, W. R., Inorg. Chem., 1997, 36, 4804.
3. Korszun, Z. R. and Moffat, K., J. Mol. Biol., 1981, 145, 815.
4. S. Mitra, Iron Porphyrins, Part II, eds. A. B. P. Lever and H. B. Gray. Addison-Wesley Publishing Company, Massachusetts, 1983, Chap 1.
5. M. Schappacher, Ph.D. Thesis, Université Louis Pasteur, Strasbourg, France, 1982.