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[1]
P. A. Deift, Duke Math.J., 45(1978), 267[2] L. E. Gendenshtein,JETP Lett.,38(1983), 356[3] L. Infeld and T.E Hull,Rev.Mod. Phys., 23(1951), 21
P. A. Deift, Duke Math.J., 45(1978), 267[2] L. E. Gendenshtein,JETP Lett.,38(1983), 356[3] L. Infeld and T.E Hull,Rev.Mod. Phys., 23(1951), 21