@article{<a href="http://dblp.uni-trier.de/db/about/bibtex.html">DBLP</a>:journals/pvldb/CaoCCX12,
  author    = {Xin Cao and
               Lisi Chen and
               Gao Cong and
               Xiaokui Xiao},
  title     = {Keyword-aware Optimal Route Search},
  journal   = {PVLDB},
  volume    = {5},
  number    = {11},
  year      = {2012},
  pages     = {1136-1147},
  ee        = {http://vldb.org/pvldb/vol5/p1136_xincao_vldb2012.pdf},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}