@article{UM_2015_23_2_a0,
     author = {Kone\v{c}n\'a, Petra},
     title = {Zaj{\'\i}mavosti z kryptologie (2) - obrana p\v{r}ed frekven\v{c}n{\'\i} kryptoanal\'yzou},
     journal = {U\v{c}itel matematiky},
     pages = {65--78},
     year = {2015},
     volume = {23},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2015_23_2_a0/}
}