C. Rhodes, 1987, Phys. Scr., T17, 193, 10.1088/0031-8949/1987/T17/022
K. Boyer, 1988, J. Opt. Soc. Am. B, 5, 1237
A. L'Huillier, 1993, Phys. Rev. Lett., 70, 774, 10.1103/PhysRevLett.70.774
J. J. Macklin, 1993, Phys. Rev. Lett., 70, 766, 10.1103/PhysRevLett.70.766
J. L. Krause, 1992, Phys. Rev. Lett., 68, 3535, 10.1103/PhysRevLett.68.3535
A. L'Huillier, 1993, Phys. Rev. A, 48, R3433, 10.1103/PhysRevA.48.R3433
P. B. Corkum, 1993, Phys. Rev. Lett., 71, 1995, 10.1103/PhysRevLett.71.1994
L. V. Keldysh, 1965, Sov. Phys. JETP, 20, 1307
F. Faisal, 1973, J. Phys. B, 6, L312, 10.1088/0022-3700/6/11/003
H. R. Reiss, 1980, Phys. Rev. A, 22, 1786, 10.1103/PhysRevA.22.1786
M. V. Ammosov, 1986, Sov. Phys. JETP, 64, 1191
N. B. Delone, 1991, J. Opt. Soc. Am. B, 8, 1207, 10.1364/JOSAB.8.001207
V. M. Ristić, 1992, Sov. Phys. JETP, 74, 789
W. Becker, 1990, Phys. Rev. A, 41, 4112, 10.1103/PhysRevA.41.4112
A. L'Huillier, 1992, Phys. Rev. A, 46, 2778, 10.1103/PhysRevA.46.2778
K. C. Kulander, 1989, Phys. Rev. Lett., 62, 524, 10.1103/PhysRevLett.62.524
J. H. Eberly, 1989, Phys. Rev. Lett., 62, 881, 10.1103/PhysRevLett.62.881
S. Chelkowski, 1992, Phys. Rev. A, 46, R5342, 10.1103/PhysRevA.46.R5342
V. C. Reed, 1992, Phys. Rev. A, 46, 424, 10.1103/PhysRevA.46.424
R. M. Potvliege, 1989, Phys. Rev. A, 40, 3061, 10.1103/PhysRevA.40.3061
B. Sundaram, 1990, Phys. Rev. A, 41, 6571, 10.1103/PhysRevA.41.6571
L. Plaja, 1992, J. Opt. Soc. Am. B, 9, 2210, 10.1364/JOSAB.9.002210
A. E. Kaplan, Proceedings of the Sixth International Conference on Multiphoton Processes, Quebec, 1993
K. C. Kulander, 1990, J. Opt. Soc. Am. B, 7, 502, 10.1364/JOSAB.7.000502
M. Yu. Ivanov, 1993, Phys. Rev. A, 48, 580, 10.1103/PhysRevA.48.580
M. Yu. Ivanov, 1993, Laser Phys., 3, 375
G. Bandarage, 1992, Phys. Rev. A, 46, 380, 10.1103/PhysRevA.46.380
Th. Auguste, 1992, J. Phys. B, 25, 4181, 10.1088/0953-4075/25/20/015
E. Mevel, 1993, Phys. Rev. Lett., 70, 406, 10.1103/PhysRevLett.70.406
M. H. Mittleman, 1982, Introduction to Theory of Laser Atom Interactions, 10.1007/978-1-4684-1143-0
M. Lewenstein, 1985, J. Phys. B, 18, L461, 10.1088/0022-3700/18/14/002
J. Grochmalicki, 1986, J. Phys. B, 19, 3649, 10.1088/0022-3700/19/22/010
J. H. Eberly, 1991, Phys. Rep., 204, 331, 10.1016/0370-1573(91)90131-5
M. Y. Ivanov, 1992, J. Mod. Phys., 39, 2377
R. Grobe, 1993, J. Phys. B, 26, 1181, 10.1088/0953-4075/26/6/016
H. A. Bethe, 1957, Quantum Mechanics of One and Two Electron Atoms, 10.1007/978-3-662-12869-5
S. Geltman, 1992, Phys. Rev. A, 45, 5293, 10.1103/PhysRevA.45.5293
R. Grobe, 1992, Phys. Rev. Lett., 68, 2595
