@article{PMFA_1959__4_5_a1,
     author = {Landis, J. M.},
     title = {O d\'elce k\v{r}ivky},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {537--546},
     publisher = {mathdoc},
     volume = {04},
     number = {5},
     year = {1959},
     zbl = {0089.03404},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1959__4_5_a1/}
}