A Cooperative, Natural Language Enviromental Information Systems. - R. Becker; Detlef Küpper; M. Strobel 001; Dietmar F. Rösner (IFIP Congress (2), 1992)

NAUDA - A Cooperative, Natural Language Interface to Relational Databases. - Detlef Küpper; M. Strobel 001; Dietmar F. Rösner (SIGMOD Conference, 1993)