@ARTICLE{IJHCR, 
author={Afghah, F. and Razi, A.}, 
journal={International Journal of Handheld Computing Research (IJHCR)}, 
title={Game Theoretic Study of Cooperative Spectrum Leasing in Cognitive Radio Networks}, 
year={2014}, 
month={}, 
volume={5}, 
number={2}, 
pages={61-74},}