@inproceedings{allan2002,
title = {{Using part-of-speech patterns to reduce query ambiguity}},
author = {J. Allan and H. Raghavan},
booktitle = {Proceedings of the 25th annual international ACM SIGIR Conference on Research and Development in Information Retrieval},
pages = {307--314},
publisher = {ACM Press New York, NY, USA},
year = {2002},
keywords = {agent nlp }
}
::