@book{SB_1975-1976__18_,
     author = {Collectif},
     title = {S\'eminaire {Bourbaki} : vol. 1975/76, expos\'es 471-488},
     series = {S\'eminaire Bourbaki},
     publisher = {Springer-Verlag},
     number = {18},
     year = {1977},
     url = {http://archive.numdam.org/item/SB_1975-1976__18_/}
}