@article{UM_2012_20_1_a10,
     author = {Fo\v{r}tov\'a, Ilona and Proch\'azka, Franti\v{s}ek},
     title = {Zlep\v{s}en{\'\i} matematick\'e gramotnosti \v{c}esk\'ych \v{z}\'ak\r{u} s vyu\v{z}it{\'\i}m grafick\'ych kalkul\'ator\r{u}},
     journal = {U\v{c}itel matematiky},
     pages = {55--56},
     year = {2012},
     volume = {20},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2012_20_1_a10/}
}