@article{PMFA_1963_8_1_a3,
     author = {Franc, Ladislav},
     title = {Souvislost rozvoje p\v{r}{\'\i}rodn{\'\i}ch v\v{e}d, v\'yvoje spole\v{c}nosti a jej{\'\i} \v{s}kolsk\'e soustavy},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {18--25},
     year = {1963},
     volume = {8},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1963_8_1_a3/}
}