@article{konjevod_approximating_2001,
	title = {On approximating planar metrics by tree metrics},
	volume = {80},
	url = {http://www.sciencedirect.com/science/article/pii/S0020019001001612},
	urldate = {2011-08-01TZ},
	journal = {Information Processing Letters},
	author = {Konjevod, G. and Ravi, R. and Salman, F. S.},
	year = {2001},
	keywords = {Metrics, Planar graphs, Probabilistic approximations, Tree metrics, algorithms, combinatorial problems},
	pages = {213--219}
}

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