@article{UM_1995_3_1_a3,
     author = {Calda, Emil},
     title = {O "skoro stejn\'em vzorci" pro po\v{c}ty kombinac{\'\i} a variac{\'\i}},
     journal = {U\v{c}itel matematiky},
     pages = {20--21},
     year = {1995},
     volume = {3},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1995_3_1_a3/}
}