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Crowdsourcing Geographic Knowledge Volume 7015 || Understanding the Value of VGI
Sui, Daniel, Elwood, Sarah, Goodchild, MichaelVolume:
10.1007/97
Year:
2013
Language:
english
Pages:
15
DOI:
10.1007/978-94-007-4587-2_2
File:
PDF, 208 KB
english, 2013