@article{10_14708_cm_v1i1_5368,
     author = {J. Czajkowski and T. Tietz},
     title = {O pewnym r\'ownaniu r\'o\.zniczkowym},
     journal = {Commentationes Mathematicae},
     pages = { 162--164},
     publisher = {mathdoc},
     volume = {1},
     number = {1},
     year = {1955},
     doi = {10.14708/cm.v1i1.5368},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v1i1.5368/}
}