@article{MAN_1975__216_162729,
     author = {Jochen Br\"uning},
     title = {Indextheorie f\"ur eine {C+-Algebra} von {Toeplitzoperatoren.}},
     journal = {Mathematische Annalen},
     pages = {113--122},
     publisher = {mathdoc},
     volume = {216},
     year = {1975},
     zbl = {0294.46047},
     url = {http://geodesic.mathdoc.fr/item/MAN_1975__216_162729/}
}