@article{10_4064_cm_40_2_239_247,
     author = {Th. Friedrich and S. Sulanke},
     title = {Ein {Kriterium} f\"ur die formale {Selbstadjungiertheit} des {Dirac-Operators}},
     journal = {Colloquium Mathematicum},
     pages = {239--247},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {1978},
     doi = {10.4064/cm-40-2-239-247},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-40-2-239-247/}
}