@article{PMFA_2008_53_4_a5,
     author = {Strouhal, \v{C}en\v{e}k},
     title = {Mosaika. {IV}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {335--340},
     year = {2008},
     volume = {53},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2008_53_4_a5/}
}