@article{10_14708_cm_v1i1_5371,
     author = {K. Urbanik},
     title = {O zbiorach p{\l}askich z{\l}o\.zonych z odcink\'ow r\'ownoleg{\l}ych},
     journal = {Commentationes Mathematicae},
     pages = { 169--173},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {1955},
     doi = {10.14708/cm.v1i1.5371},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v1i1.5371/}
}