[1] . Diamagnetic Zeeman effect and magnetic configuration mixing in long spectral series of BA I[J]. Astrophys.J., 1969, 158: 839.

[2] Connerade J P,Hogan S D,Abdulla A M.Experimental investigation of atoms in crossed electric and magnetic fields[J].J.Phys.,2005,B38:S141

[3] . High-lying Rydberg states of barium in crossed fields[J]. J.Phys.B:At.Mol.Opt.Phys., 2004, 37: L147.

[4] Du M L,Delos J B.Effect of closed classical orbits on quantum spectra:Ionization of atoms in a magnetic field.I.Physical picture and calculations[J]Phys.Rev.,1988,A38:1896

[5] Liu W Y,He X H,Li B W.Numerical study of the quasi-Landau resonances of sodium[J].Phys.Rev.,1993,A47:2725

[6] Halley M H,Delande D,Taylor K T.The combination of R-matrix and complex coordinate methods:Application to the diamagnetic Rydberg spectra of Ba and Sr[J].J.Phys.,1993,B26:1775

[7] Kang S,Liu Q,Zhong Z X,Zhang X Z,Shi T Y.Calculations of diamagnetic spectra of highly-excited hydrogen atom using b-spline basis sets[J].Acta Phys.Sin.,(accepted)(in Chinese)[康帅,刘强,钟振祥,张现周,史庭云.氢原子Rydberg态抗磁谱的高阶B-spline基组计算[J].物理学报(已接收)]

[8] Rao J G,Li B W,Taylor K T.Theoretical calculations of the diamagnetic Rydberg spectrum of Na[J].J.Phys.,1995,B28:4715

[9] . On calculating with B-splines[J]. J.Approx.Theory, 1972, 6: 50.

[10] . The numerical evaluation of B-splines[J]. J.Inst.Math.Applic., 1972, 10: 134.

[11] Xi J H,He X H,Li B W.Energy levels of the hydrogen atom in arbitrary magnetic fields obtained by using B-spline basis sets[J].Phys.Rev.,1992,A46:5806

[12] Xu K Z.Advanced Atomic and Molecular Physics[M].Beijing:Science Press,2002.114(in Chinese)[徐克尊.高等原子分子物理[M].北京:科学出版社,2002.114]

[13] . Origin and structure of the quasi-landau resonances[J]. Phys.Rev.Lett., 1980, 45: 1780.