@INPROCEEDINGS {36087,
author={F.  Pereira and R.  Correia and M.  Nunes and N.B.C. Carvalho},
doi={10.1109/RFID-TA.2019.8891959},
booktitle={IEEE RFID-TA IEEE International Conference on RFID Technology and Applications IEEE RFID-TA},
title={Performance evaluation of backscatter modulation techniques by using one and two frequencies},
year={2019},
month={September},
volume={},
pages={-} 
}