@misc{KYB_1980_16_4_a8,
     title = {Zpr\'avy},
     journal = {Kybernetika},
     pages = {386--388},
     year = {1980},
     volume = {16},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/KYB_1980_16_4_a8/}
}