TY - JOUR KW - non-Palaiseau KW - paper AU - Pierluigi Cudazzo AU - Matteo Gatti AU - Angel Rubio BT - PHYSICAL REVIEW B DA - NOV 7 DO - 10.1103/PhysRevB.86.195307 M1 - 19 PY - 2012 T2 - PHYSICAL REVIEW B TI - Excitons in molecular crystals from first-principles many-body perturbation theory: Picene versus pentacene VL - 86 SN - 1098-0121 ER -