@misc{KYB_1966_2_5_a9,
     title = {Zpr\'avy},
     journal = {Kybernetika},
     pages = {472--473},
     year = {1966},
     volume = {2},
     number = {5},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/KYB_1966_2_5_a9/}
}