@article{10_21136_CPMF_1915_121502,
     author = {Sobotka, Jan},
     title = {Pozn\'amka ke dv\v{e}ma dopis\r{u}m prof. {Kol\'a\v{c}ka}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     publisher = {mathdoc},
     volume = {44},
     number = {4-5},
     year = {1915},
     doi = {10.21136/CPMF.1915.121502},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1915.121502/}
}