@inproceedings{HuGrScWa13,
	author = {Yulin Hu and James Gross and Anke Schmeink and Tong Wang},
	title = "Maximizing Energy Efficiency for Multiple DF Relay System with {QoS} Constraint",
	pages = "419-423",
	booktitle = "International Symposium on Wireless Communication Systems 2013 (ISWCS)",
	address = {Ilmenau, Germany},
	month = Aug,
	year = 2013,
	hsb = {hsb999910311772 },
	}