
\bibitem[Bar 60]{bar60} Bar-Hillel, Y., The Present Status of Automatic Translation of Languages, {\em Advances in Computers, Vol.I},
Academic Press, 1960.

\bibitem[Bob 80a] {bo80a} Bobrow, R.J., and Webber, B.L., PSI-KLONE -- Parsing and Semantic Interpretation in the BBN Natural Language Understanding System, {\em Proceedings the CSCSI/SCEIO Conference}, May 1980.

\bibitem[Bob 80b] {bo80b} Bobrow, R.J. and Webber, B.L., Knowledge Representation for Syntactic/Semantic Processing, {\em Proceedings the 1st Annual National Conference on Artificial Intelligence}, Stanford, August 1980.

\bibitem{Bra 79} {bra79} Brachman, R.J., {\em Research in Natural Language Understanding}, BBN Report 4274, Bolt Berenek and Newman, Cambridge, Mass, 1979.

\bibitem[Bri 87]{bris87} Briscoe, E.J., Grover, C., Boguraev, B.K. and Carrol, J.A., A formalism and environment for the development of a large grammar of English, {\em Proceedings of Tenth International Joint Conference on Artificial Intelligence}, pp.703-708, Milan, Italy, 1987.

\bibitem [Cho 65] {cho65} Chomsky, N., {\em Aspects of the Theory of Syntax}, MIT Press, 1965.

\bibitem[Fei 64] {fei64} Feigenbaum., E.A. and Feldman, J., {\em Computers and Thought}, McGraw-Hill, New York, 1964.

\bibitem [Fri 71] {fri71} Friedman, J., {\em A Mathematical Model of Transformational Grammar}, New York, American Elsevier, 1971.

\bibitem [Fri 72] {fri72} Friedman, J., Mathematical and Computational Models of Transformational Grammar, {\em Machine Intelligence 7, pp.293-306}, Meltzer and Michie (eds), Edinburgh University Press, 1972.

\bibitem [Gaz 85] {gaz85} Gazdar, G., Klein, E., Pullum, G.K. and Sag, I.A., {\em Generalised Phrase Structure Grammar}, Backwell, Oxford, 1985.

\bibitem [Hal 67] {hall67a} Halliday, M.A.K., {\em Notes on Transitivity and Theme (Parts I, II and III)}, Journal of Linguistics, Vol.3, N.1, pp.37-81, 1967.

\bibitem [Hal 67] {hall67b} Halliday, M.A.K., {\em Notes on Transitivity and Theme (Parts I, II and III)}, Journal of Linguistics, Vol.3, N.2, pp.199-244, 1967.

\bibitem [Hal 68] {hall68} Halliday, M.A.K., {\em Notes on Transitivity and Theme (Parts I, II and III)}, Journal of Linguistics, Vol.4, N.2, pp.179-215, 1968.

\bibitem [Hen 78] {hen78} Hendrix, G.G., Sacerdoti, E. D., Sagalowicz, D., and Slocum, J., {\em Developing a Natural Language Interface to Complex Data}, ACM Transactions on Databases 3, N.2, pp.105-147, 1978.

\bibitem [Min 68] {min68} Minsky, M., {\em Semantic Information Processing}, MIT Press, Cambridge, Mass, 1968.

\bibitem [Tho 77] {thom77} Thompson, H.S., Strategy and Tactics: A Model for Language Production, {\em Papers from 13th Meeting of Chicago Linguistic Society}, 1977.

\bibitem [Wei 66] {wei66} Weizenbaum, J., {\em ELIZA -- A Computer Program for the Study of Natural Language Communication between Man and Machine}, CACM 13, pp.591-606, 1966.

\bibitem [Wei 67] {wei67} Weizenbaum, J., {\em Contextual Understanding by Computers}, CACM 10, pp.474-480, 1967.

\bibitem [Wil 75] {wil75} Wilks, Y., {\em Parsing English I}, Charniak and Wilks, 1975.

\bibitem [Win 72] {wi72} Winograd, T., {\em Understanding Natural Language}, Edinburgh University Press/Academic Press, 1972.

\bibitem [Woo 68] {woo68} Woods, W.A., {\em Procedural Semantics for a Question-Answering Machine}, Proc. Fall Joint Computer Conference, New York, pp.457-471, 1968.

\bibitem [Woo 70] {woo70} Woods, W.A., {\em Transition Network Grammars for Natural Language Analysis}, CACM 13, pp.591-606, 1970.

\bibitem [Woo 72] {woo72} Woods, W.A., Nash-Webber, B.L. and Kaplan, R.M., {\em The Lunar Sciences Natural Language System: Final Report}, BBN Report 2265, Bolt Beranek and Newman, 1972.

\bibitem [Woo 75] {woo75} Woods, W.A., {\em Some Methodological Issues in Natural Language Understanding Research}, TINLAP-1, 1975.

\bibitem [Woo 77] {woo77} Woods, W.A., {\em Lunar Rocks in Natural English: Explorations in Natural Language Question Answering}, Zampolli, 1977.
