@article{10_4064_cm_40_2_259_264,
     author = {K. Goebel and T. Kuczumow},
     title = {Irregular convex sets with fixed-point property for nonexpansive mappings},
     journal = {Colloquium Mathematicum},
     pages = {259--264},
     publisher = {mathdoc},
     volume = {40},
     number = {2},
     year = {1978},
     doi = {10.4064/cm-40-2-259-264},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-40-2-259-264/}
}