@article{10_4064_cm_32_1_69_70,
     author = {W. Kulpa and A. Szyma\'nski},
     title = {Accumulation points of nowhere dense sets},
     journal = {Colloquium Mathematicum},
     pages = {69--70},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1974},
     doi = {10.4064/cm-32-1-69-70},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-32-1-69-70/}
}