@article{UM_2007_15_1_a6,
     author = {Zelinka, Bohdan},
     title = {Pro\v{c} u\v{c}{\'\i}me matematice},
     journal = {U\v{c}itel matematiky},
     pages = {54--59},
     year = {2007},
     volume = {15},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2007_15_1_a6/}
}