@article{JMPA_1945_9_24__169_0,
     author = {Leray, Jean},
     title = {Sur la position d{\textquoteright}un ensemble ferm\'e de points d{\textquoteright}un espace topologique (deuxi\`eme partie d'un cours de topologie alg\'ebrique profess\'e en captivit\'e)},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {169--199},
     volume = {9e s{\'e}rie, 24},
     year = {1945},
     mrnumber = {15787},
     zbl = {0060.40704},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1945_9_24__169_0/}
}