@article{MM2_1974__14_154296,
     author = {Ernst Albrecht},
     title = {Der spektrale {Abbildungssatz} f\"ur nichtanalytische {Funktionalkalk\"ule} in mehreren {Ver\"anderlichen.}},
     journal = {Manuscripta mathematica},
     pages = {263--278},
     publisher = {mathdoc},
     volume = {14},
     year = {1974},
     zbl = {0294.47014},
     url = {http://geodesic.mathdoc.fr/item/MM2_1974__14_154296/}
}