@article{UM_1999_7_2_a3,
     author = {Calda, Emil},
     title = {Rozmis\v{t}ovac{\'\i} \'ulohy a po\v{c}ty $k$-\v{c}lenn\'ych kombinac{\'\i}},
     journal = {U\v{c}itel matematiky},
     pages = {90--94},
     year = {1999},
     volume = {7},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1999_7_2_a3/}
}