@article{10_14708_cm_v19i2_5868,
     author = {B. Rzepecki},
     title = {On the {Banach} principle and its application to the theory of differential equations},
     journal = {Commentationes Mathematicae},
     pages = { 355--363},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {1977},
     doi = {10.14708/cm.v19i2.5868},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v19i2.5868/}
}