TY - JOUR KW - paper AU - J.J. Kas AU - John Rehr AU - Lucia Reining BT - Phys. Rev. B DA - Aug DO - 10.1103/PhysRevB.90.085112 PB - American Physical Society PY - 2014 EP - 085112 T2 - Phys. Rev. B TI - Cumulant expansion of the retarded one-electron Green function UR - http://link.aps.org/doi/10.1103/PhysRevB.90.085112 VL - 90 ER -