@article{ASENS_1988_4_21_3_333_0,
     author = {Guichardet, A.},
     title = {Sur les groupes $EXT^n$ des repr\'esentations des groupes de {Lie} semi-simples},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {333--358},
     publisher = {Elsevier},
     volume = {4e s{\'e}rie, 21},
     number = {3},
     year = {1988},
     doi = {10.24033/asens.1561},
     mrnumber = {90e:22026},
     zbl = {0760.22016},
     language = {fr},
     url = {http://www.numdam.org/articles/10.24033/asens.1561/}
}