@incollection{SB_1985-1986__28__241_0,
     author = {Lafontaine, Jacques},
     title = {Mesures de courbure des vari\'et\'es lisses et des poly\`edres},
     booktitle = {S\'eminaire Bourbaki : volume 1985/86, expos\'es 651-668},
     series = {Ast\'erisque},
     note = {talk:664},
     pages = {241--256},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {145-146},
     year = {1987},
     mrnumber = {880036},
     zbl = {0613.53031},
     language = {fr},
     url = {http://archive.numdam.org/item/SB_1985-1986__28__241_0/}
}