@article{PMFA_1962__7_2_a2,
     author = {N\'aden{\'\i}k, Zbyn\v{e}k},
     title = {O integr\'aln{\'\i} geometrii},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {75--79},
     publisher = {mathdoc},
     volume = {07},
     number = {2},
     year = {1962},
     zbl = {0123.15802},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1962__7_2_a2/}
}