Transponders for Altimeter Calibration and Height Transfer

On the Separation of Gravitation and Inertia in the Case of Free Motion

Radially Symmetric Zero-Potential Densities for the Solution of Gravitational Inverse Problems

Monitoring Earth Orientation Variations at the Center for Orbit Determination in Europe (CODE)

Calibration of Digital Levelling Systems

The Austrian Geodynamic Reference Frame (AGREF) Motivation and Results