@misc{PMFA_1961_6_4_a12,
     title = {Z \v{c}innosti {\v{C}AS}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {246},
     year = {1961},
     volume = {6},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1961_6_4_a12/}
}