@article{PMFA_1962__7_4_a1,
     author = {Urban, Alois},
     title = {Geometrie pl\'astv{\'\i} v rovin\v{e}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {193--210},
     publisher = {mathdoc},
     volume = {07},
     number = {4},
     year = {1962},
     zbl = {0128.16102},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1962__7_4_a1/}
}