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Prepared with the partial support of NSF grant DMS-8705757.
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Simpson, C.T. Higgs bundles and local systems. Publications Mathématiques de l’Institut des Hautes Scientifiques 75, 5–95 (1992). https://doi.org/10.1007/BF02699491
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DOI: https://doi.org/10.1007/BF02699491