@article{10_21136_CPMF_1904_123295,
     author = {Sobotka, Jan},
     title = {Pozn\'amky k centr\'aln\'emu prom{\'\i}t\'an{\'\i} koule},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {117--122},
     year = {1904},
     volume = {33},
     number = {2},
     doi = {10.21136/CPMF.1904.123295},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1904.123295/}
}