1. For instance,Instabilities and Chaos in Quantum Optics, ed. by F.T. Arecchi, R.G. Harrison (Springer, Berlin, Heidelberg 1987) and references cited therein
2. Lecture Notes in Physics,1987
3. Frontiers in Quantum Optics, ed. by E.R. Pike, S. Sarkar (Hilger, Bristol 1986)
4. Feature issue on ?Squeezed States of the Electromagnetic Field,? J. Opt. Soc. Am. B4, (October 1987)
5. Z.Y. Ou, L. Mandel: Phys. Rev. Lett.61, 50 (1988)