@misc{PMFA_2013_58_4_a6,
     title = {Vyu\v{c}ov\'an{\'\i}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {326--335},
     year = {2013},
     volume = {58},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2013_58_4_a6/}
}