@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}, author = {Collectif}, series = {Ast\'erisque}, note = {talk:664}, publisher = {Soci\'et\'e math\'ematique de France}, number = {145-146}, year = {1987}, zbl = {0613.53031}, mrnumber = {880036}, language = {fr}, url = {http://archive.numdam.org/item/SB_1985-1986__28__241_0/} }