Deployment of the ASCAT calibration transponders. - Alan F. Fromberg; Eric W. Pritchard; Nigel G. Wright; J. J. W. Wilson; Gokhan Kayal (IGARSS, 2010)

Radar transponders and their combination with GNSS for deformation monitoring. - Pooja S. Mahapatra; Hans van der Marel; Ramon F. Hanssen; Rachel Holley; Sami Samiei-Esfahany; Marko Komac; Alan F. Fromberg (IGARSS, 2012)