@misc{KYB_1970_6_5_a5,
     title = {Book {Reviews}},
     journal = {Kybernetika},
     pages = {399--400},
     year = {1970},
     volume = {6},
     number = {5},
     language = {sk},
     url = {http://geodesic.mathdoc.fr/item/KYB_1970_6_5_a5/}
}