Non-Singular Expressions for the Gravity Gradients in the Local North-Oriented and Orbital Reference Frames M. S. PetrovskayaA. N. Vershkov Original Article 06 May 2006 Pages: 117 - 127
A Critical Analysis of a Recent Test of the Lense–Thirring Effect with the LAGEOS Satellites Lorenzo Iorio Original Article 07 June 2006 Pages: 128 - 136
A VLBI Delay Model for Radio Sources at a Finite Distance M. SekidoT. Fukushima Original Article 28 April 2006 Pages: 137 - 149
Uncertainty in GPS Networks due to Remaining Systematic Errors: The Interval Approach S. SchönH. Kutterer Original Article 04 April 2006 Pages: 150 - 162