@article{FORUM_1995__7_1_186432,
     author = {Karl Michael Schmidt},
     title = {Dense point spectrum and absolutely continuous spectrum in spherically symmetric {Dirac} operators.},
     journal = {Forum mathematicum},
     pages = {459--476},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {1995},
     zbl = {0826.34076},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1995__7_1_186432/}
}