@book{306798,
	author = {Yonghong Chen},
	title = {Energy Efficiency Analysis of Multi-Antenna Heterogeneous Relay-Assisted Cellular Network via Stochastic Geometry },
	publisher = {Journal of Communications},
	url = {http://www.jocm.us/index.php?m=content&c=index&a=lists&catid=168}
}