TY - CHAP AU - Friedrich, Christoph AU - Schindlmayr, Arno ED - Blügel, Stefan ED - Helbig, Nicole ED - Meden, Volker ED - Wortmann, Daniel ID - 18474 SN - 1866-1807 T2 - Computing Solids: Models, ab initio Methods and Supercomputing TI - Many-body perturbation theory: The GW approximation VL - 74 ER -