@misc{KYB_1991__27_2_a7,
     title = {Nov\'e knihy},
     journal = {Kybernetika},
     publisher = {mathdoc},
     volume = {27},
     number = {2},
     year = {1991},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/KYB_1991__27_2_a7/}
}