@article{10_14708_cm_v1i2_5377,
     author = {K. Urbanik},
     title = {O pewnym niesko\'nczonym uk{\l}adzie r\'owna\'n},
     journal = {Commentationes Mathematicae},
     pages = { 253--255},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {1955},
     doi = {10.14708/cm.v1i2.5377},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v1i2.5377/}
}