1. L. V. Levshin, T. D. Slavnova, and V. L. Yuzhakov, Zh. Prikl. Spektrosk.,24, No. 6, 985 (1976).
2. V. I. Permogorov, L. A. Serdyukova, and M. D. Frank-Kamenetskii, Opt. Spektrosk.,25, 77 (1968).
3. L. V. Levshin, E. Yu. Bekhli, T. D. Slavnova, and V. I. Yuzhakov, Opt. Spektrosk.,36, 503 (1974).
4. L. V. Levshin, T. D. Slavnova, and V. I. Yuzhakov, Vesta. Mosk. Gos. Univ., No. 4, 441 (1973).
5. A. N. Terenin, The Photonics of Dye Molecules [in Russian], Izd. Nauka, Leningrad (1967).