@article{10_4064_cm_1_3_206_209,
     author = {Karol Borsuk},
     title = {Concerning the {Euler} characteristic of normal spaces},
     journal = {Colloquium Mathematicum},
     pages = {206--209},
     publisher = {mathdoc},
     volume = {1},
     number = {3},
     year = {1947},
     doi = {10.4064/cm-1-3-206-209},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-1-3-206-209/}
}