@article{CMUC_1994__35_3_a13,
     author = {Tka\v{c}enko, Michael G.},
     title = {$M$-mappings make their images less cellular},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {553--563},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1994},
     mrnumber = {1307283},
     zbl = {0840.54002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1994__35_3_a13/}
}