@article{PMFA_2013_58_3_a0,
     author = {K\v{r}{\'\i}\v{z}ek, Michal},
     title = {Pra\v{z}sk\'y orloj, jak jej nezn\'ate},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {177--180},
     year = {2013},
     volume = {58},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2013_58_3_a0/}
}