A criterion for complete reducibility and some applications
Représentations linéaires des groupes finis - Luminy, 16-21 mai 1988, Astérisque, no. 181-182 (1990), pp. 93-112 
@incollection{AST_1990__181-182__93_0,
     author = {Cabanes, Marc},
     title = {A criterion for complete reducibility and some applications},
     booktitle = {Repr\'esentations lin\'eaires des groupes finis - Luminy, 16-21 mai 1988},
     series = {Ast\'erisque},
     pages = {93--112},
     year = {1990},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {181-182},
     mrnumber = {1051244},
     zbl = {0799.16007},
     language = {en},
     url = {https://www.numdam.org/item/AST_1990__181-182__93_0/}
}
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Cabanes, Marc. A criterion for complete reducibility and some applications, dans Représentations linéaires des groupes finis - Luminy, 16-21 mai 1988, Astérisque, no. 181-182 (1990), pp. 93-112. https://www.numdam.org/item/AST_1990__181-182__93_0/

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