@InProceedings{zollmann-vogel:2011:ACL-HLT2011, author = {Zollmann, Andreas and Vogel, Stephan}, title = {A Word-Class Approach to Labeling PSCFG Rules for Machine Translation}, booktitle = {Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics: Human Language Technologies}, month = {June}, year = {2011}, address = {Portland, Oregon, USA}, publisher = {Association for Computational Linguistics}, pages = {1--11}, url = {http://www.aclweb.org/anthology/P11-1001} }