Elektronische Informationsverarbeitung und Kybernetik, Band 27

Volume 27, Number 1, 1991

Volume 27, Number 2, 1991

Volume 27, Number 3, 1991

Volume 27, Number 4, 1991

Volume 27, Number 5/6, 1991

Volume 27, Number 7, 1991

Volume 27, Number 8, 1991