@article{DBLP: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} }