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V. Spitkovsky, H. Alshawi, и D. Jurafsky. Human Language Technologies: The 2010 Annual Conference of the North American Chapter of the Association for Computational Linguistics, стр. 751--759. Stroudsburg, PA, USA, Association for Computational Linguistics, (2010)
V. Spitkovsky, H. Alshawi, и D. Jurafsky. NIPS 2009 Workshop on Grammar Induction, Representation of Language and Language Learning, Whistler, Canada, (декабря 2009)