@article{CMUC_1968__9_2_a2,
     author = {Dane\v{s}, Josef},
     title = {Some fixed point theorems},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {223--235},
     publisher = {mathdoc},
     volume = {09},
     number = {2},
     year = {1968},
     mrnumber = {0235435},
     zbl = {0165.49201},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1968__9_2_a2/}
}