1. See, e.g., A.H. Zewail, Femtochemistry — Ultrafast Dynamics of the Chemical Bond, Vols. I, II (World Scientific, Singapore, 1994).
2. See, e.g., R.R. Ernst, G. Bodenhausen and A. Wokaun, Principles of Nuclear Magnetic Resonance in One and Two Dimensions (Oxford University Press, Oxford, 1987).
3. S. Mukamel, Principles of Nonlinear Optical Spectroscopy (Oxford University Press, New York, 1995).
4. S. Mukamel, A. Piryatinski and V. Chernyak, Acc. Chem. Res.
32, 145 (1999).
5. S. Mukamel, Ann. Rev. Phys. Chem.
51, 691 (2000).