@article {Fox:2011qd,
	title = {An Effective Z{\textquoteright}},
	journal = {Phys. Rev. D},
	volume = {84},
	year = {2011},
	pages = {115006},
	doi = {10.1103/PhysRevD.84.115006},
	author = {Fox, Patrick J. and Jia Liu and Tucker-Smith, David and Weiner, Neal}
}
