@article{10_21136_CPMF_1904_123654,
     author = {Pet{\'\i}ra, Stanislav},
     title = {Drobn\'e zpr\'avy},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {29--32},
     year = {1904},
     volume = {33},
     number = {1},
     doi = {10.21136/CPMF.1904.123654},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1904.123654/}
}