@article{PMIHES_1996__84__35_0,
     author = {Pierre Deligne},
     title = {Extensions centrales de groupes alg\'ebriques simplement connexes et cohomologie galoisienne},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {35--89},
     year = {1996},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {84},
     doi = {10.1007/BF02698835},
     mrnumber = {98d:14056},
     zbl = {0930.20043},
     language = {fr},
     url = {https://pmihes.centre-mersenne.org/articles/10.1007/BF02698835/}
}