@article{10_21136_CPMF_1905_120945,
     author = {H\"ubner, V\'aclav},
     title = {Odvozen{\'\i} n\v{e}kter\'ych v\v{e}t trigonometrick\'ych},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {177--179},
     year = {1905},
     volume = {34},
     number = {2},
     doi = {10.21136/CPMF.1905.120945},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1905.120945/}
}