Gravity field research in Norway is getting more active of late with the involvement of Ch Gerlach attachment at nmbo.
A number of research output can be noticed. Among them is a review paper "Observation, validation, modeling - historical lines and recent results in Norwegian gravity field research" by Christian Gerlach, Michal Sprlak, Katrin Bentel and Bjorn Petterson (23 pages).
Source - kartogplan.
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