1. Historical: (a) U. Boesl, H.J. Neusser, E.W. Schlag, Z. Naturforsch. 33a (1978) 1546; (b) L. Zandee, R.B. Bernstein, J. Chem. Phys. 71 (1981) 1359; (c) U. Boesl, H.J. Neusser, E.W. Schlag, Chem. Phys. 55 (1981) 193. For a survey of analytical applications, see e.g. (d) D.M. Lubman, R. Trembreull, C.H. Sin, Anal. Chem. 57 (1985) 1084; (e) V.S. Letokhov, Laser Photoionization Spectroscopy, Academic, Orlando, FL, 1987.
2. Account: Multiphoton ionization mass spectrometry: principles and fields of application
3. For a review, see: (a) Time-of-Flight Mass Spectrometry, R.J. Cotter (Ed.), American Chemical Society, Washington, 1994; (b) C. Weickhardt, F. Moritz, J. Grotemeyer, Mass Spectrom. Rev. 15 (1996) 139.
4. For an overview, see e.g.: N.J. Turro, Modern Molecular Photochemistry, University Science Books, Sausalito, CA, 1991, and references therein.
5. Multiphoton Bibliography, 1970–1976, J.H. Eberly, B. Karczewski, (Eds.), Data Management Research Project, Lawrence Livermore Laboratory, Livermore, CA, 1977, and supplements.