@inproceedings{Masuda:2003:SRW,
  author = {Masuda, Katsuya},
  title  = {A Ranking Model of Proximal and Structural Text Retrieval Based on Region Algebra},
  booktitle = {Proceedings of the ACL-2003 Student Research Workshop},
  editor = {Kotaro Funakoshi,  Sandra K\\\"{u}bler and Jahna Otterbacher},
  url    = {http://www.aclweb.org/anthology/P03-2008.pdf},
  year   = 2003,
  pages  = {50--57}
}