@article{10_4064_ap_9_2_145_155,
     author = {Z. Opial},
     title = {Sur un th\'eor\`eme de {C.E.} {Langenhop} et {G.} {Seifert}},
     journal = {Annales Polonici Mathematici},
     pages = {145--155},
     publisher = {mathdoc},
     volume = {9},
     number = {2},
     year = {1960},
     doi = {10.4064/ap-9-2-145-155},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-9-2-145-155/}
}