@article{DBLP:journals/pvldb/Shirani-MehrKS12,
author = {Houtan Shirani-Mehr and
Farnoush Banaei Kashani and
Cyrus Shahabi},
title = {Efficient Reachability Query Evaluation in Large Spatiotemporal
Contact Datasets},
journal = {PVLDB},
volume = {5},
number = {9},
year = {2012},
pages = {848-859},
ee = {http://vldb.org/pvldb/vol5/p848_houtanshirani-mehr_vldb2012.pdf},
bibsource = {DBLP, http://dblp.uni-trier.de}
}