TY - JOUR KW - non-Palaiseau KW - paper AU - G Cappellini AU - Rodolfo Del Sole AU - Lucia Reining AU - F. Bechstedt BT - Phys. Rev. B DA - Apr DO - 10.1103/PhysRevB.47.9892 M1 - 15 PB - American Physical Society PY - 1993 EP - 9892 T2 - Phys. Rev. B TI - Model dielectric function for semiconductors VL - 47 ER -