@book{130952,
	author = {Hsu, J. P. and Hsu, Leon.},
	title = {Space-time symmetry and quantum Yang-Mills gravity :},
	publisher = {World Scientific,},
	year = {2013.},
	series = {Advanced Series on Theoretical Physical Science ;},
	address = {Singapore :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10775252}
}