@article {5430,
	title = {Impact of widely used approximations to the G 0W 0 method: An all-electron perspective},
	year = {2012},
	doi = {10.1088/1367-2630/14/2/023006},
	author = {Xin-Zheng Li and Ricardo G{\'o}mez-Abal and Hong Jiang and Claudia Ambrosch-Draxl and Matthias Scheffler}
}
