Unibranch orbit closures in module varieties
Annales scientifiques de l'École Normale Supérieure, Série 4, Tome 35 (2002) no. 6, pp. 877-895. 
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     author = {Zwara, Grzegorz},
     title = {Unibranch orbit closures in module varieties},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {877--895},
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     volume = {Ser. 4, 35},
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     year = {2002},
     doi = {10.1016/s0012-9593(02)01110-2},
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     zbl = {1059.16008},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/s0012-9593(02)01110-2/}
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Zwara, Grzegorz. Unibranch orbit closures in module varieties. Annales scientifiques de l'École Normale Supérieure, Série 4, Tome 35 (2002) no. 6, pp. 877-895. doi : 10.1016/s0012-9593(02)01110-2. http://archive.numdam.org/articles/10.1016/s0012-9593(02)01110-2/

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