@misc{KYB_1972_8_6_a8,
     title = {Zpr\'avy},
     journal = {Kybernetika},
     pages = {563--564},
     year = {1972},
     volume = {8},
     number = {6},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/KYB_1972_8_6_a8/}
}