@article{10_21136_CPMF_1880_109299,
     author = {P\'anek, Augustin},
     title = {O ustanoven{\'\i} vzorce pro plosk\'y obsah troj\'uheln{\'\i}ku, jsou-li d\'any strany jeho},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {152--156},
     publisher = {mathdoc},
     volume = {09},
     number = {4},
     year = {1880},
     doi = {10.21136/CPMF.1880.109299},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1880.109299/}
}