@misc{KYB_1997_33_2_a7,
     title = {Book reviews},
     journal = {Kybernetika},
     pages = {239--242},
     year = {1997},
     volume = {33},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1997_33_2_a7/}
}