@ARTICLE {6157,
author={P.S André and M. J. N. Lima and N. Fernandes  and F Granada and T. Almeida and   Chang and   Lan and X Xiangjun},
doi={10.1002/mop.26506},
journal={Microwave and Optical Tech. Letters},
title={Raman amplified access networks with pump signal recycling for electrical power conversion},
year={2012},
month={January},
volume={54},
number={1},
pages={116-119},
ISSN={0895-2477}
}