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@article{MAN_1973__206_162518, author = {Erik Lippa}, title = {An {Elementary} {Approach} to {Hecke} {Operators.}}, journal = {Mathematische Annalen}, pages = {237--242}, publisher = {mathdoc}, volume = {206}, year = {1973}, zbl = {0251.10022}, url = {https://geodesic-test.mathdoc.fr/item/MAN_1973__206_162518/} }
Erik Lippa. An Elementary Approach to Hecke Operators.. Mathematische Annalen, Tome 206 (1973), pp. 237-242. https://geodesic-test.mathdoc.fr/item/MAN_1973__206_162518/