@misc{KYB_1993_29_4_a6,
     title = {Book reviews},
     journal = {Kybernetika},
     pages = {403--405},
     year = {1993},
     volume = {29},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1993_29_4_a6/}
}