1. V.E. Fortov, Extreme States of Matter, 2nd edn. (Springer, Hielberg, 2016)
2. P.D. Maker , R.W. Terhune, C.M. Savage, Proceedings of the 3rd International Conference on Quantum Electronics, ed. by P. Grivet, N. Bloembergen (Columbia U, New York, 1963), pp. 1559–1565
3. C.G. Morgan, Laser-induced breakdown of gases. Rep. Prog. Phys. 38, 621 (1975).
http://iopscience.iop.org/0034-4885/38/5/002
4. T.X. Phuoc, Optics Commun. 175, 259 (2000)
5. F.H.M. Faisal, Theory of Multiphoton Processes (Plenum Press, New York, 1987)