@article{10_21136_CPMF_1930_122746,
     author = {Sobotka, Jan},
     title = {Pozn\'amka k z\'akladn{\'\i}m vztah\r{u}m sou\v{r}adnic projektivn{\'\i}ch},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {87--93},
     publisher = {mathdoc},
     volume = {59},
     number = {2},
     year = {1930},
     doi = {10.21136/CPMF.1930.122746},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1930.122746/}
}