@misc{KYB_1980_16_2_a9,
     title = {Zpr\'avy},
     journal = {Kybernetika},
     pages = {205--207},
     year = {1980},
     volume = {16},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/KYB_1980_16_2_a9/}
}