@misc{PMFA_1956_1_3_a14,
     title = {Zpr\'avy},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {313--316},
     year = {1956},
     volume = {1},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1956_1_3_a14/}
}