@article{10_4064_fm_42_1_111_124,
     author = {A. Kosi\'nski},
     title = {On manifolds and r-spaces.},
     journal = {Fundamenta Mathematicae},
     pages = {111--124},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {1955},
     doi = {10.4064/fm-42-1-111-124},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-42-1-111-124/}
}