@article {10882,
	title = {Pole expansion of self-energy and interaction effect for topological insulators},
	journal = {Physical Review B - Condensed Matter and Materials Physics},
	year = {2012},
	doi = {10.1103/PhysRevB.85.235135},
	author = {Lei Wang and Hua Jiang and Xi Dai and X.C. Xie}
}
