@inproceedings {Simula.simula.255,
	title = {A Group-Based Cooperative Medium Access Control Protocol for Cognitive Radio Networks},
	journal = {Proceedings of the 18th International Workshop on Quality of Service (IWQoS), 2010},
	year = {2010},
	publisher = {IEEE Press},
	type = {Conference},
	isbn = {978-1-4244-5987-2},
	author = {Liu, Y. and Yu, Rong and Zhang, Yan and Xie, Shengli},
	editor = {B., Liu}
}
