@misc{UM_1995_3_4_a9,
     title = {Tot\'aln{\'\i} \'ulohy},
     journal = {U\v{c}itel matematiky},
     pages = {46},
     year = {1995},
     volume = {3},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1995_3_4_a9/}
}