@misc{KYB_1990__26_6_a6,
     title = {New {Books}},
     journal = {Kybernetika},
     pages = {514--516},
     publisher = {mathdoc},
     volume = {26},
     number = {6},
     year = {1990},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1990__26_6_a6/}
}