@misc{KYB_1976_12_4_a6,
     title = {Zpr\'avy},
     journal = {Kybernetika},
     pages = {300--302},
     year = {1976},
     volume = {12},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/KYB_1976_12_4_a6/}
}