@InProceedings{lester:2012:INLG2012, author = {Lester, James}, title = {Expressive NLG for Next-Generation Learning Environments: Language, Affect, and Narrative}, booktitle = {INLG 2012 Proceedings of the Seventh International Natural Language Generation Conference}, month = {May}, year = {2012}, address = {Utica, IL}, publisher = {Association for Computational Linguistics}, pages = {2}, url = {http://www.aclweb.org/anthology/W12-1502} }