@misc{UM_1992_0_2_a6,
     title = {Informace},
     journal = {U\v{c}itel matematiky},
     pages = {18},
     year = {1992},
     volume = {0},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1992_0_2_a6/}
}