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@article{CM_1936__3__380_0, author = {Schwerdtfeger, Hans}, title = {\"Uber mehrdeutige {Matrixfunktionen}}, journal = {Compositio Mathematica}, pages = {380--390}, publisher = {Johnson Reprint Corporation}, volume = {3}, year = {1936}, zbl = {0015.09803}, language = {de}, url = {http://geodesic.mathdoc.fr/item/CM_1936__3__380_0/} }
Schwerdtfeger, Hans. Über mehrdeutige Matrixfunktionen. Compositio Mathematica, Tome 3 (1936), pp. 380-390. http://geodesic.mathdoc.fr/item/CM_1936__3__380_0/