@INPROCEEDINGS {530,
author={R. F. S. Caldeirinha and M. AL-Nuaimi},
doi={},
booktitle={USNC/URSI National Radio Science Meeting},
title={Co-Polar and Cross-Polar Measurements of the Re-Radiation Signal at 20 GHz from a Tree and their Analysis in the region around the Nulls},
year={1999},
month={February},
volume={INV4},
pages={---} 
}