@article{10_21136_CPMF_1930_122742,
     author = {Ondr\'ak, Franti\v{s}ek},
     title = {Slovn\'e \'ulohy, zvl\'a\v{s}t\v{e} aritmetick\'e, v matematick\'em vyu\v{c}ov\'an{\'\i}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {9--D15},
     year = {1930},
     volume = {59},
     number = {2},
     doi = {10.21136/CPMF.1930.122742},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1930.122742/}
}