Historical Revue of Central European vertical reference systems related to common European system (UELN) and to new system based on GPS results (EUVN). Kinematic information based on comparison of historical observations and GPS observations.
Historical Revue of Central European vertical reference systems related to common European system (UELN) and to new system based on GPS results (EUVN). Kinematic information based on comparison of historical observations and GPS observations. (en)