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"volunteers geographic information vgi " » "volunteer geographic information vgi ", "volunteered geographic information vgi ", "countries geographic information vgi "
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1
by Costa Fonte, Cidália
Published 2017
Ubiquity Press
Subjects: “...volunteered geographic information (vgi)...”
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2
by Bordogna, Gloria
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute
Subjects: “...volunteered geographic information (VGI)...”