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Supported by the Sonderforschungsbereich für Theoretische Mathematik at Bonn University
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van der Geer, G. Hilbert modular forms for the field\(\mathbb{Q}(\sqrt 6 )\) . Math. Ann. 233, 163–179 (1978). https://doi.org/10.1007/BF01421924
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DOI: https://doi.org/10.1007/BF01421924