K. H. Hanne

Design and Implementation of Direct Manipulative and Deictic User Interfaces to Knowledge Based Systems

K. H. Hanne, A. Gräble, K. Hanne, 1987 .

Combined graphic- and natural language-interaction (design and implementation)

K. H. Hanne, J. Ph. Hoepelman, J. Hoepelman, 1989 .