B. R. Junker, 1973, Phys. Rev. A, 8, 1345, 10.1103/PhysRevA.8.1345
B. Donnally, 1971, Phys. Rev. A, 4, 122, 10.1103/PhysRevA.4.122
I. A. Sellin, 1971, Phys. Rev. Lett., 27, 1108, 10.1103/PhysRevLett.27.1108
I. A. Sellin, 1972, Phys. Rev. Lett., 28, 1229, 10.1103/PhysRevLett.28.1229
D. J. Pegg, 1972, Phys. Rev. Lett., 28, 1615, 10.1103/PhysRevLett.28.1615
W. W. Smith, 1973, Phys. Rev. A, 7, 487, 10.1103/PhysRevA.7.487
J. W. Hiby, 1939, Ann. Phys. (Leipz.), 34, 473, 10.1002/andp.19394260506
R. Dopel, 1925, Ann. Phys. (N.Y.), 76, 1, 10.1002/andp.19253810102
T-Y. Wu, 1940, Phys. Rev., 58, 1114, 10.1103/PhysRev.58.1114
T-Y. Wu, 1944, Chin. J. Phys. (Peking), 5, 150
E. Holøien, 1955, Proc. Phys. Soc. Lond. A, 68, 815, 10.1088/0370-1298/68/9/306
J. D. Garcia, 1965, Phys. Rev., 138, A987, 10.1103/PhysRev.138.A987
E. Holøien, 1967, Phys. Rev., 153, 81, 10.1103/PhysRev.153.81
G. Herzberg, 1959, Can. J. Phys., 37, 1239
H. Schuler, 1925, Ann. Phys. (Leipz.), 76, 292, 10.1002/andp.19253810213
S. Werner, 1926, Nature (Lond.), 118, 154, 10.1038/118154b0
J. P. Buchet, 1969, Phys. Lett. A, 28, 529, 10.1016/0375-9601(69)90668-9
W. S. Bickel, 1969, Phys. Rev., 178, 118, 10.1103/PhysRev.178.118
W. S. Bickel, 1969, J. Opt. Soc. Am., 59, 830, 10.1364/JOSA.59.000830
F. Gaillard, 1969, C.R. Acad. Sci. (Paris), 269, 420
N. Anderson, 1971, Phys. Lett. A, 34, 227, 10.1016/0375-9601(71)90842-5
H. G. Berry, 1971, Phys. Scr., 3, 63, 10.1088/0031-8949/3/2/003
H. G. Berry, 1972, J. Opt. Soc. Am., 62, 767, 10.1364/JOSA.62.000767
S. Hontzeas, 1972, Phys. Scr., 6, 55, 10.1088/0031-8949/6/1/006
B. Edlén, 1939, Nature (Lond.), 143, 940, 10.1038/143940a0
N. J. Peacock, 1969, J. Phys. B, 2, 798, 10.1088/0022-3700/2/7/310
A. H. Gabriel, 1969, Nature (Lond.), 221, 947, 10.1038/221947a0
A. B. C. Walker, 1971, Astrophys. J., 164, 181, 10.1086/150828
G. A. Doscheck, 1971, Astrophys. J., 164, 165, 10.1086/150827
P. Feldman, 1963, Phys. Rev. Lett., 11, 278, 10.1103/PhysRevLett.11.278
P. Feldman, 1967, Phys. Rev., 160, 143, 10.1103/PhysRev.160.143
L. M. Blau, 1970, Phys. Rev. Lett., 24, 1268, 10.1103/PhysRevLett.24.1268
I. S. Dmitriev, 1968, Phys. Lett. A, 26, 122, 10.1016/0375-9601(68)91158-4
I. S. Dmitriev, 1966, Zh. Eksp. Teor. Fiz. Pis'ma Red., 3, 35
S. T. Manson, 1966, Phys. Lett., 23, 315, 10.1016/0031-9163(66)90017-5
V. V. Balashov, 1967, Phys. Lett. A, 25, 487, 10.1016/0375-9601(67)90096-5
L. Cocke, Proceedings of the Third International Conference on Beam-Foil Spectroscopy Nucl. Instr. Methods
V. V. Zashkvara, 1966, Zh. Tekh. Fiz., 36, 132
H. G. Berry, 1972, Phys. Rev. A, 6, 514, 10.1103/PhysRevA.6.514
E. Holøien, 1971, J. Phys. B, 4, 1243, 10.1088/0022-3700/4/10/007
I. A. Sellin, 1971, Phys. Rev. Lett., 27, 1108, 10.1103/PhysRevLett.27.1108
I. A. Sellin, 1972, Phys. Rev. Lett., 28, 1229, 10.1103/PhysRevLett.28.1229
M. Levitt, 1971, Phys. Rev. A, 3, 130, 10.1103/PhysRevA.3.130
