@article{PMFA_1961__6_2_a4,
     author = {Jel{\'\i}nek, Milo\v{s}},
     title = {Sv\v{e}tov\'y z\'ajem o vyu\v{c}ov\'an{\'\i} p\v{r}{\'\i}rodn{\'\i}m v\v{e}d\'am},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {105--109},
     publisher = {mathdoc},
     volume = {06},
     number = {2},
     year = {1961},
     language = {cz},
     url = {https://geodesic-test.mathdoc.fr/item/PMFA_1961__6_2_a4/}
}