Status of the zero-order levelling network of France and consequences for UELN / Henri Duquenne (01/12/2009)
contenu dans Report on the Symposium of the IAG Subcommission 1.3A Europe (EUREF) held in London 6-9 June 2007 & reports of the EUREF technical working group (TWG), EUREF publication n° 17 / Joao Agria Torres (2009)
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