@article{UM_1998_6_4_a1,
     author = {Zelinka, Bohdan},
     title = {Sestrojujeme ku\v{z}elose\v{c}ky bez kru\v{z}{\'\i}tka},
     journal = {U\v{c}itel matematiky},
     pages = {203--210},
     year = {1998},
     volume = {6},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1998_6_4_a1/}
}