@article{CMUC_1964__5_1_a1,
     author = {H\'ajek, O.},
     title = {Homological fixed point theorems},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {13--31},
     publisher = {mathdoc},
     volume = {05},
     number = {1},
     year = {1964},
     mrnumber = {0177409},
     zbl = {0139.40802},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1964__5_1_a1/}
}