@article{10_4064_sm_38_1_313_317,
     author = {Bernhard Gramsch},
     title = {\"Uber analytische {Operatorfunktionen} und {Indexberechnung}},
     journal = {Studia Mathematica},
     pages = {313--317},
     publisher = {mathdoc},
     volume = {38},
     number = {1},
     year = {1970},
     doi = {10.4064/sm-38-1-313-317},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-38-1-313-317/}
}