@article{PMFA_2013_58_3_a6,
     author = {Patka, Milan},
     title = {Rytina pra\v{z}sk\'eho orloje z roku 1837},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {215--220},
     year = {2013},
     volume = {58},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2013_58_3_a6/}
}