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Oblatum 14-III-1990 & 5-III-1991
The author is supported by an NFWO grant
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Van den Bergh, M. Cohen-Macaulayness of modules of covariants. Invent Math 106, 389–409 (1991). https://doi.org/10.1007/BF01243917
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DOI: https://doi.org/10.1007/BF01243917