@ARTICLE {4097,
author={T.  Araújo and R. Dinis},
doi={10.1002/ett.1361},
journal={European Trans. on Telecommunications},
title={A Spectrally Efficient Frequency Diversity Technique for Single-Carrier Modulations with Frequency Division Multiplexing},
year={2009},
month={August},
volume={20},
number={5},
pages={513-521},
ISSN={1124-318X}
}