@misc{KYB_1991__27_1_a6,
     title = {New {Books}},
     journal = {Kybernetika},
     pages = {72--74},
     publisher = {mathdoc},
     volume = {27},
     number = {1},
     year = {1991},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1991__27_1_a6/}
}