@article{10_4064_cm_23_1_103_106,
     author = {K. Goebel and E. Z{\l}otkiewicz},
     title = {Some fixed point theorems in {Banach} spaces},
     journal = {Colloquium Mathematicum},
     pages = {103--106},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {1971},
     doi = {10.4064/cm-23-1-103-106},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-23-1-103-106/}
}