@article{10_4064_fm_109_2_143_154,
     author = {Roman Pol},
     title = {On a question of {H.H.} {Corson} and some related problems},
     journal = {Fundamenta Mathematicae},
     pages = {143--154},
     publisher = {mathdoc},
     volume = {109},
     number = {2},
     year = {1980},
     doi = {10.4064/fm-109-2-143-154},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-109-2-143-154/}
}