@article{PMFA_2009_54_4_a7,
     author = {\v{S}olc, Martin},
     title = {Evropsk\'e astronomick\'e orloje},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {325--356},
     year = {2009},
     volume = {54},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2009_54_4_a7/}
}