@article{10_4064_cm_76_1_19_29,
     author = {Gerd Herzog},
     title = {On a {Theorem} of {Mierczy\'nski}},
     journal = {Colloquium Mathematicum},
     pages = {19--29},
     publisher = {mathdoc},
     volume = {76},
     number = {1},
     year = {1998},
     doi = {10.4064/cm-76-1-19-29},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-76-1-19-29/}
}