@article{DBLP:journals/corr/abs-0804-2057,
  author    = {Jos{\'e} R. P{\'e}rez-Ag{\"u}era and
               Lourdes Araujo},
  title     = {Comparing and Combining Methods for Automatic Query Expansion},
  journal   = {Research in Computer Science},
  volume    = {33},
  year      = {2008},
  pages     = {177--188},
  ee        = {http://arxiv.org/abs/0804.2057},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}