@article{10_21136_CPMF_1918_124000,
     author = {Jarol{\'\i}mek, V.},
     title = {T\v{r}i \'ulohy o ellipse},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {49--54},
     year = {1918},
     volume = {47},
     number = {1},
     doi = {10.21136/CPMF.1918.124000},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1918.124000/}
}