CB2. H. Zhang, T. A. Tsiftsis, J. Cheng, and V. Leung, "Resource Allocation in Spectrum Sharing Cognitive Heterogeneous Networks," Chapter in Book, Handbook of Cognitive Radio - Section "Dynamic Spectrum Access and Sharing", Handbook of Cognitive Radio, Springer 2017
CB1. Kaltenberger, T. A. Tsiftsis, F. Foukalas, S. Ping and O. Holland, "Aggregation of spectrum opportunities" Book chapter in "Opportunistic Spectrum Sharing and White Space Access: The Practical Reality", O. Holland, H. Bogucka, A. Medeisis, and V. Gediminas, (Eds.), Wiley, 2015.