@article{10_21136_CPMF_1894_109321,
     author = {Pleskot, Anton{\'\i}n},
     title = {Geometrick\'e odvozen{\'\i} vzorc\r{u} pro sou\v{c}et goniometrick\'ych funkc{\'\i}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {183--186},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1894},
     doi = {10.21136/CPMF.1894.109321},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1894.109321/}
}