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2. M. Gavrila (Ed.): Atoms in Intense Laser Fields (Academic Press, San Diego 1992)
3. M. H. Mittleman: Theory of Laser-Atom Interactions, 2nd edn. (Plenum, New York 1993)
4. P. Lambropoulos, S. J. Smith (Eds.): Proceedings of the International Conference of Multiphoton Processes III, 1984, Vol. 2 (Springer, Berlin, Heidelberg 1984)
5. S. J. Smith, P. L. Knight (Eds.): Proceedings of the International Conference on Multiphoton Processes IV, 1988, Vol. 8 (Cambridge Univ. Press, Cambridge 1988)