@article{SMJ_1935-1936__3__A2_0,
     author = {Ehresmann, Charles},
     title = {Topologie combinatoire, groupes d'homologie},
     journal = {S\'eminaire de Math\'ematiques dit de Julia},
     note = {talk:2},
     pages = {1--25},
     publisher = {\'Ecole Normale Sup\'erieure},
     volume = {3},
     year = {1935-1936},
     language = {fr},
     url = {http://www.numdam.org/item/SMJ_1935-1936__3__A2_0/}
}