Robust estimation by expectation maximization algorithm Karl Rudolf Koch Original Article 12 July 2012 Pages: 107 - 116
Continental mass change from GRACE over 2002–2011 and its impact on sea level O. BaurM. KuhnW. E. Featherstone Original Article 14 July 2012 Pages: 117 - 125
An improved sampling rule for mapping geopotential functions of a planet from a near polar orbit Matthias WeigeltNico SneeuwPieter N. A. M. Visser Original Article 21 August 2012 Pages: 127 - 142
Nonlinear diffusion filtering of data on the Earth’s surface Róbert ČunderlíkKarol MikulaMartin Tunega Original Article 07 September 2012 Pages: 143 - 160
Single-receiver single-channel multi-frequency GNSS integrity: outliers, slips, and ionospheric disturbances P. J. G. TeunissenP. F. de Bakker Original Article Open access 01 September 2012 Pages: 161 - 177
Mitigating the impact of ionospheric cycle slips in GNSS observations Simon BanvilleRichard B. Langley Review 04 November 2012 Pages: 179 - 193