@article{10_21136_CPMF_1910_123370,
     author = {Langr, Josef},
     title = {P\v{r}{\'\i}sp\v{e}vek ku geometrii troj\'uheln{\'\i}ka},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {87--94},
     publisher = {mathdoc},
     volume = {39},
     number = {1},
     year = {1910},
     doi = {10.21136/CPMF.1910.123370},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1910.123370/}
}