@incollection{MSMF_1972__31-32__343_0,
     author = {Robertson, Wendy},
     title = {Sur le th\'eor\`eme du graphe ferm\'e},
     booktitle = {Colloque d'analyse fonctionnelle (Bordeaux, 1971)},
     series = {M\'emoires de la Soci\'et\'e Math\'ematique de France},
     pages = {343--350},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {31-32},
     year = {1972},
     doi = {10.24033/msmf.99},
     mrnumber = {52 #6369},
     zbl = {0251.46013},
     url = {http://archive.numdam.org/articles/10.24033/msmf.99/}
}