@article{10_21136_CPMF_1928_122033,
     author = {Ondr\'ak, Franti\v{s}ek},
     title = {O fysice v ni\v{z}\v{s}{\'\i}ch t\v{r}{\'\i}d\'ach st\v{r}edn{\'\i}ch \v{s}kol. {[I.]}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {D12},
     publisher = {mathdoc},
     volume = {57},
     number = {1},
     year = {1928},
     doi = {10.21136/CPMF.1928.122033},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1928.122033/}
}