@misc{KYB_1997__33_6_a9,
     title = {Book reviews},
     journal = {Kybernetika},
     pages = {699--701},
     publisher = {mathdoc},
     volume = {33},
     number = {6},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1997__33_6_a9/}
}