@article{PMIHES_2001__94__5_0,
     author = {Jean-Luc Brylinski and Pierre Deligne},
     title = {Central extensions of reductive groups by $K_2$},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {5--85},
     year = {2001},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {94},
     doi = {10.1007/s10240-001-8192-2},
     mrnumber = {1896177},
     zbl = {1093.20027},
     language = {en},
     url = {https://pmihes.centre-mersenne.org/articles/10.1007/s10240-001-8192-2/}
}