@article{KYB_1969__5_3_a4,
     author = {Vod\'akov\'a, Alena and Vod\'ak, Franti\v{s}ek},
     title = {P\v{r}{\'\i}sp\v{e}vek k probl\'emu validizace},
     journal = {Kybernetika},
     pages = {--222},
     publisher = {mathdoc},
     volume = {05},
     number = {3},
     year = {1969},
     language = {cz},
     url = {https://geodesic-test.mathdoc.fr/item/KYB_1969__5_3_a4/}
}