Theoretical and Experimental Study of Gravity Waves in the Ionosphere Observed With Incoherent Scatter Radar - Dan R. Sheen (1987)

Statistical and spatial properties of forest clutter measured with polarimetric synthetic aperture radar (SAR). - Dan R. Sheen; Linda P. Johnston (IEEE Trans. Geosci. Remote. Sens., 1992)

The gridded trihedral: a new polarimetric SAR calibration reflector. - Dan R. Sheen; Elmer L. Johansen; Linda P. Elenbogen; Eric S. Kasischke (IEEE Trans. Geosci. Remote. Sens., 1992)

Foliage transmission measurements using a ground-based ultrawide band (300-1300 MHz) SAR system. - Dan R. Sheen; Norman P. Malinas; David W. Kletzli Jr.; Terry B. Lewis; Juan F. Roman (IEEE Trans. Geosci. Remote. Sens., 1994)