1. J. J. Barrett and M. J. Berry, inProceedings of the Sixth International Conference on Raman Spectroscopy, Bangalore, edited by E. D. Schmid, R. S. Krishnan, W. Kiefer, and H. W. Schrotter (Heyden, London, 1978), Vol. 2, p. 466.
2. Photoacoustic Raman spectroscopy (PARS) using cw laser sources
3. A. Yariv,Quantum Electronics, 2nd ed. (Wiley, New York, 1975), Chap. 18.
4. J. J. Barrett, inChemical Applications of Raman Spectroscopy, edited by A. B. Harvey (Academic, New York, to be published).