1. The Porphyrin Handbook, Ed. by K. M. Kadish, K. M. Smith, and R. Guilard (Acad. Press, Burlington, 2000) p. 630.
2. B. D. Berezin, Metalloporphyrins, B. D. Berezin and N. S. Enikolopyan (Nauka, Moscow, 1988) [in Russian].
3. D. B. Berezin, Macrocyclic Effect and Structural Chemistry of Porphyrins (URSS, Moscow, 2010) [in Russian].
4. V. A. Kuz’mitskii, K. N. Solov’ev, and M. P. Tsvirko, Porphyrins: Spectroscopy, Electrochemistry, Application, Ed. by N. S. Enikolopyan (Nauka, Moscow, 1987), p. 7 [in Russian].
5. A. Yu. Tsivadze, Proceedings of Fifth International Conference on Porphyrins & Phtalocyanines (ICPP-5), 2008, Moscow, no. 0016.