@article{10_14708_cm_v2i1_5392,
     author = {H. Steinhaus},
     title = {D{\l}ugo\'s\'c, kszta{\l}t i pole},
     journal = {Commentationes Mathematicae},
     pages = { 65--78},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {1956},
     doi = {10.14708/cm.v2i1.5392},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v2i1.5392/}
}