@ARTICLE {6308,
author={F. J. Velez and M. del Camino Noguera and O. Holland and H. Aghvami},
doi={},
journal={Journal of Green Engineering (discontinued)},
title={Fixed WiMAX Profit Maximisation with Energy Saving through Relay Sleep Modes and Cell Zooming},
year={2011},
month={June},
volume={1},
number={4},
pages={355-381},
ISSN={1904-4720}
}