Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/Geoforum
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Wikipedia: en.wikipedia.or ... https://en.wikipedia.org/wiki/Geoforum
SUDOC: www.sudoc.fr/03 ... http://www.sudoc.fr/038712547
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q5535018
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Pubmed: pubmed.ncbi.nlm ... https://pubmed.ncbi.nlm.nih.gov/?term=%220016-7185%22%5BJournal%5D&sort=
