@article{UM_2000_8_3_a2,
     author = {Ma\v{c}\'ak, Karel},
     title = {\v{S}koln{\'\i} matematick\'e \'ulohy star\'e 1200 let (3)},
     journal = {U\v{c}itel matematiky},
     pages = {142--148},
     year = {2000},
     volume = {8},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2000_8_3_a2/}
}