@article{UM_2016_24_3_a4,
     author = {Calda, Emil},
     title = {Zkus{\'\i}te to u sv\'ych student\r{u}?},
     journal = {U\v{c}itel matematiky},
     pages = {171--173},
     year = {2016},
     volume = {24},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2016_24_3_a4/}
}