Search for: [Subject and Keywords = Becker, Helmut \(1944\- \; geophysicist\)] OR [Subject and Keywords = German geophysicists] OR [Subject and Keywords = Becker, Helmut \(1944\- \; geofizyk\)] OR [Subject and Keywords = geofizycy niemieccy] OR [Title = Helmut Becker] OR [Creator = Fassbinder, Jörg]