@article{10_21136_CPMF_1903_124077,
     author = {Petr, Karel},
     title = {O racion\'aln\'ych k\v{r}ivk\'ach \v{c}tvrt\'eho stupn\v{e}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {9--21},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1903},
     doi = {10.21136/CPMF.1903.124077},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1903.124077/}
}