@article{journals/talg/RodittyTZ08,
	title = {Roundtrip spanners and roundtrip routing in directed graphs.},
	author = {Liam Roditty and Mikkel Thorup and Uri Zwick},
	journal = {ACM Transactions on Algorithms},
	number = {3},
	url = {http://dblp.uni-trier.de/db/journals/talg/talg4.html#RodittyTZ08},
	volume = {4},
	year = {2008},
	biburl = {http://www.bibsonomy.org/bibtex/248a23d2b8a8208af94d80b94427c2585/dblp},
	description = {dblp},
	ee = {http://doi.acm.org/10.1145/1367064.1367069}, date = {2008-07-02},
	keywords = {dblp }
}