1. Allegranza, V. (1993). Le forme dell'interlingua. Osservazioni sui modelli linguistici della traduzione automatica. Sistemi Intelligenti 5: 121?157.
2. Fodor, J. (1981). Tom Swift and His Procedural Grandmother. In Representations, 204?224. Harvester: Brighton.
3. Gazdar, G. (1993). The Handling of Natural Language. In Broadbent, D. (ed.) The Simulation of Human Intelligence, 151?177. Blackwell: Oxford.
4. Hutchins, W. J. (1986), Machine Translation: Past, Present, Future. Ellis Horwood: Chichester.
5. Johnson-Laird, Ph. (1983). Mental Models. Cambridge Univ. Press: Cambridge.