@misc{KYB_1990_26_5_a6,
     title = {New {Books}},
     journal = {Kybernetika},
     pages = {443--446},
     year = {1990},
     volume = {26},
     number = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1990_26_5_a6/}
}