1. Altimeter Waveform Product (WAP) ALT.WAP,1995
2. Topography from land altimeter data: possibilities and restrictions;Berry,1999
3. Global Digital Elevation Models — fact or fiction?;Berry;Astronomy & Geophysics,1999
4. Retracking ERS-1 Altimeter Waveforms over Land for Topographic Height Determination: an Expert Systems Approach;Berry;Space at the Service of our Environment, ESA Pub. SP-414,1997
5. Use of ERS-1 Land Altimetry to Validate the GLOBE Global Digital Elevation Model;Berry,1997