@article{PMFA_2009__54_4_a3,
     author = {K\v{r}{\'\i}\v{z}ek, Michal and Somer, Lawrence and \v{S}olcov\'a, Alena},
     title = {Deset matematick\'ych v\v{e}t o pra\v{z}sk\'em orloji},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {281--300},
     publisher = {mathdoc},
     volume = {54},
     number = {4},
     year = {2009},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2009__54_4_a3/}
}