@inproceedings{toutanova2005srl,
 author = {Kristina Toutanova and Aria Haghighi and Christopher D. Manning},
 booktitle = {Association for Computational Linguistics (ACL)},
 title = {Joint learning imrpoves semantic role labeling},
 url = {https://nlp.stanford.edu/pubs/toutanova2005srl.pdf},
 year = {2005}
}