1. A. L. Smith,Applied Infrared Spectroscopy, Wiley, New York, 1979, p. 79.
2. G. Kort�m, D. Oelkrug,Naturwissenschaften 1966,53, 600.
3. P. J. Brimmer, P. R. Griffiths, N. J. Harrick,Appl. Spectrosc. 1986,40, 258.
4. N. J. Harrick,Internal Reflection Spectroscopy, Wiley, New York, 1967, p. 13.
5. A. Rosencwaig,Photoacoustics and Photoacoustic Spectroscopy, Wiley, New York, 1980, p. 93.