@misc{UM_1992_0_4_a24,
     title = {Ozn\'amen{\'\i}, sd\v{e}len{\'\i}},
     journal = {U\v{c}itel matematiky},
     pages = {31--32},
     year = {1992},
     volume = {0},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1992_0_4_a24/}
}