@article {279,
	title = {Challenging Problems in Geovisual Analytics},
	journal = {Visual Languages and Computing},
	year = {2011},
	keywords = {[Project Phase 2] Visual analysis of movement and event data in spatiotemporal context},
	issn = {1045-926X},
	doi = {http://dx.doi.org/10.1016/j.jvlc.2011.04.001},
	author = {G. Andrienko and N. Andrienko and D.A. Keim and A. MacEachren and S. Wrobel}
}
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