@article{UM_2009_17_4_a4,
     author = {Van\v{e}k, Vladim{\'\i}r and Moln\'ar, Josef},
     title = {Z dobr\'e praxe},
     journal = {U\v{c}itel matematiky},
     pages = {228--237},
     year = {2009},
     volume = {17},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2009_17_4_a4/}
}