@book{MSM_1931__45__1_0,
     author = {Wilkosz, W.},
     title = {Les propri\'et\'es topologiques du plan euclidien},
     series = {M\'emorial des sciences math\'ematiques},
     publisher = {Gauthier-Villars},
     number = {45},
     year = {1931},
     language = {fr},
     url = {http://archive.numdam.org/item/MSM_1931__45__1_0/}
}