@misc{KYB_1969__5_6_a9,
     title = {Zpr\'avy},
     journal = {Kybernetika},
     pages = {567--568},
     publisher = {mathdoc},
     volume = {05},
     number = {6},
     year = {1969},
     language = {cz},
     url = {https://geodesic-test.mathdoc.fr/item/KYB_1969__5_6_a9/}
}