@misc{KYB_1989__25_5_a8,
     title = {New {Books}},
     journal = {Kybernetika},
     pages = {423--439},
     publisher = {mathdoc},
     volume = {25},
     number = {5},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1989__25_5_a8/}
}