@article{10_4064_sm_15_3_365_366,
     author = {Vlastimil Pt\'ak},
     title = {On a theorem of {Mazur} and {Orlicz}},
     journal = {Studia Mathematica},
     pages = {365--366},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {1955},
     doi = {10.4064/sm-15-3-365-366},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-15-3-365-366/}
}