@incollection{SB_1954-1956__3__93_0,
     author = {Lions, Jacques-Louis},
     title = {Probl\`emes aux limites relatifs \`a des \'equations de type elliptique},
     booktitle = {S\'eminaire Bourbaki : ann\'ees 1954/55 - 1955/56, expos\'es 101-136},
     series = {S\'eminaire Bourbaki},
     note = {talk:110},
     pages = {93--105},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {3},
     year = {1956},
     mrnumber = {1611376},
     zbl = {0122.33601},
     language = {fr},
     url = {http://archive.numdam.org/item/SB_1954-1956__3__93_0/}
}