@article{10_14708_cm_v13i1_5657,
     author = {A. M\k{a}kowski and K. Wi\'sniewski},
     title = {Generalization of {Abian{\textquoteright}s} fixed point theorem},
     journal = {Commentationes Mathematicae},
     pages = { 63--65},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1969},
     doi = {10.14708/cm.v13i1.5657},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v13i1.5657/}
}