@article{10_21136_CPMF_1901_108803,
     author = {Nov\'ak, Vladim{\'\i}r},
     title = {O kulov\'em blesku},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {65--75},
     publisher = {mathdoc},
     volume = {30},
     number = {1},
     year = {1901},
     doi = {10.21136/CPMF.1901.108803},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1901.108803/}
}