@article{TSG_1985-1986__4__101_0,
     author = {Pansu, Pierre},
     title = {Pincement des vari\'et\'es \`a courbure n\'egative d'apr\`es {M.} {Gromov} et {W.} {Thurston}},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     pages = {101--113},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {4},
     year = {1985-1986},
     mrnumber = {1046064},
     zbl = {1066.53509},
     language = {fr},
     url = {http://archive.numdam.org/item/TSG_1985-1986__4__101_0/}
}