1. M.L. Wolbarsht: IEEE J. QE-20, 1427?1432 (1984)
2. A.D. Zweig, B. Meierhofer, O.M. Müller, C. Mischler, V. Romano, M. Frenz, H.P. Weber: Lasers Surg. Med. 10, 262?274 (1990)
3. M. Frenz, A.D. Zweig, V. Romano, H.P. Weber: In Laser-Tissue Interaction, ed. by S.L. Jacques (Proc. SPIE 1202, 1990) pp. 22?33
4. V.M. Zolotgarev, B.A. Mikhailov, L.I. Alperovich, S.I. Popov: Opt. Spectrosc. 26, 430?432 (1969)
5. D.R. Meyer, C. Scholz, A. Büchle, M. Grothues-Spork, G.J. Müller, W. Siebert, F. Dinkelaker, T. Cierpinski: Lasers Med. Surg. 6, 150?155 (1990)