Planning Reference Choices for Argumentative Teas Xiaorong Huang author 1997-07 text 35th Annual Meeting of the Association for Computational Linguistics and 8th Conference of the European Chapter of the Association for Computational Linguistics Association for Computational Linguistics Madrid, Spain conference publication huang-1997-planning 10.3115/976909.979642 https://aclanthology.org/P97-1025/ 1997-07 190 197