1. M.D. Kirnos, I.Y. Khudykov, N.I. Alexandrashikina, B.F. Vanyushin, Nature 270, 369 (1977)
2. F. Michel, M. Hanna, R. Green, D.P. Bartel, J.W. Szostak, Nature 342, 391 (1989)
3. W.B. Person, Krystyna Szczpaniak, in, ed by J.R. Durig, Vibrational Spectra and Structure, vol. 20, Chap. 5 (1993)
4. S. Farquharson, C. Shendre, F.E. Inscore, P. Maksymiuk, A. Gift, J. Raman Spectrosco. 36, 208 (2005)
5. M.A. Graham, G.W. Lockwood, D. Greenslade, S. Brienza, M. Bayssas, E. Gamelin, Clin. Cancer Res. 6, 1205 (2000)