@article{10_21136_CPMF_1883_108999,
     author = {Zah\'alka, \v{C}en\v{e}k},
     title = {O soustav\'ach \v{c}{\'\i}seln\'ych},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {27--32},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1883},
     doi = {10.21136/CPMF.1883.108999},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1883.108999/}
}