@article{PMFA_1972_17_6_a0,
     author = {Nov\'ak, Josef and Rozs{\'\i}val, Miroslav},
     title = {Dvac\'at\'e v\'yro\v{c}{\'\i} zalo\v{z}en{\'\i} {\v{C}eskoslovensk\'e} akademie v\v{e}d},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {293--298},
     year = {1972},
     volume = {17},
     number = {6},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1972_17_6_a0/}
}