@article{10_14708_wm_v3i2_2611,
     author = {R. Engelking},
     title = {Rozwi\k{a}zanie zagadnienia {Poincarego?}},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 147},
     publisher = {mathdoc},
     volume = {3},
     number = {2},
     year = {1959},
     doi = {10.14708/wm.v3i2.2611},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v3i2.2611/}
}