@misc{KYB_1969_5_6_a7,
     title = {Recenze},
     journal = {Kybernetika},
     pages = {562--563},
     year = {1969},
     volume = {5},
     number = {6},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/KYB_1969_5_6_a7/}
}