@INPROCEEDINGS {15260,
author={D. Ribeiro and P.M. Cruz and N.B.C. Carvalho},
doi={0},
booktitle={URSI Seminar of the Portuguese Committee},
title={Two-Tone Measurement Technique to apply on Mixed-Domain Instrumentation},
year={2011},
month={November},
volume={1},
pages={1-4} 
}