@article{MZ_1974__139_172115,
     author = {Klaus-J\"urgen Eckhardt},
     title = {Scattering {Theory} for {Dirac} {Operators.}},
     journal = {Mathematische Zeitschrift},
     pages = {105--132},
     publisher = {mathdoc},
     volume = {139},
     year = {1974},
     zbl = {0277.35079},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__139_172115/}
}