@INPROCEEDINGS {4945,
author={P. M. Marques and I. D. Dias and E. F. Fernandes},
doi={},
booktitle={IEEE International Geoscience and Remote Sensing Symp.- IGARSS},
title={A Low Cost Testbed for Synthetic Aperture Techniques},
year={2007},
month={July},
volume={CD-ROM},
pages={---} 
}