Current Research in the Development of a Spoken Language Understanding System using PARSEC Carla B Zoltowski author 1991-06 text 29th Annual Meeting of the Association for Computational Linguistics Association for Computational Linguistics Berkeley, California, USA conference publication zoltowski-1991-current 10.3115/981344.981399 https://aclanthology.org/P91-1054/ 1991-06 353 354