@book{SB_1989-1990__32_,
     author = {Collectif},
     title = {S\'eminaire {Bourbaki} : volume 1989/90, expos\'es 715-729},
     series = {Ast\'erisque},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {189-190},
     year = {1990},
     url = {http://www.numdam.org/item/SB_1989-1990__32_/}
}