@article{CMUC_1968__9_4_a6,
     author = {Hu\v{s}ek, Miroslav},
     title = {On a problem of {H.} {Herrlich}},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {571--572},
     publisher = {mathdoc},
     volume = {09},
     number = {4},
     year = {1968},
     mrnumber = {0244946},
     zbl = {0174.54102},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1968__9_4_a6/}
}