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@article{MAN_1980__252_163450, author = {Hans Maa{\ss}}, title = {Harmonische {Formen} in einer {Matrixvariablen.}}, journal = {Mathematische Annalen}, pages = {133--140}, publisher = {mathdoc}, volume = {252}, year = {1980}, zbl = {0427.31006}, url = {http://geodesic.mathdoc.fr/item/MAN_1980__252_163450/} }
Hans Maaß. Harmonische Formen in einer Matrixvariablen.. Mathematische Annalen, Tome 252 (1980), pp. 133-140. http://geodesic.mathdoc.fr/item/MAN_1980__252_163450/