@article{10_21136_CPMF_1920_121745,
     author = {Schuster, Jan},
     title = {N\v{e}kolik pozn\'amek o \v{c}ty\v{r}st\v{e}nu. {[I.]}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {54--60},
     publisher = {mathdoc},
     volume = {49},
     number = {1},
     year = {1920},
     doi = {10.21136/CPMF.1920.121745},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1920.121745/}
}