G.  El-Howayek, Jayaweera, S. K., Hakim, K., Vázquez-Vilar, G., y Mosquera, C., «Dynamic Spectrum Leasing (DSL) in Dynamic Channels», in ICC Workshop on Cognitive Radio Interfaces and Signal Processing (ICC CRISP), Cape Town, South Africa, 2010.

K.  Hakim, Jayaweera, S. K., El-Howayek, G., y Mosquera, C., «Efficient Dynamic Spectrum Sharing in Cognitive Radio Networks: Centralized Dynamic Spectrum Leasing (C-DSL)», IEEE Transactions on Wireless Communications, vol. 9, pp. 2956-2967, 2010.