@misc{PMFA_1967_12_1_a15,
     title = {Zpr\'avy z pobo\v{c}ek},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {63--[66]},
     year = {1967},
     volume = {12},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1967_12_1_a15/}
}