@INPROCEEDINGS {2418,
author={A. Topa and C. R. Paiva and A. Barbosa},
doi={},
booktitle={Progress in Electromagnetics Research Symp. - PIERS},
title={DNG-NRD Directional Couplers},
year={2005},
month={August},
volume={1},
pages={115-115} 
}
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