@incollection{SB_1951-1954__2__31_0,
     author = {Samuel, Pierre},
     title = {Vari\'et\'e de {Picard} et groupe de {Severi} {(Expos\'e} des r\'esultats g\'eom\'etriques contenus dans la th\`ese de {A.} {N\'eron)}},
     booktitle = {S\'eminaire Bourbaki : ann\'ees 1951/52 - 1952/53 - 1953/54, expos\'es 50-100},
     series = {S\'eminaire Bourbaki},
     note = {talk:53},
     pages = {31--35},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {2},
     year = {1954},
     mrnumber = {1609209},
     language = {fr},
     url = {http://archive.numdam.org/item/SB_1951-1954__2__31_0/}
}