@misc{KYB_1989_25_4_a6,
     title = {New {Books}},
     journal = {Kybernetika},
     pages = {320--335},
     year = {1989},
     volume = {25},
     number = {4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1989_25_4_a6/}
}