TY - JOUR KW - non-Palaiseau KW - paper AU - Lucia Reining AU - Rodolfo Del Sole BT - Phys. Rev. Lett. DA - Dec DO - 10.1103/PhysRevLett.67.3816 M1 - 27 PB - American Physical Society PY - 1991 EP - 3816 T2 - Phys. Rev. Lett. TI - Quasi-one-dimensional excitons and the optical properties of Si(111)2x1 VL - 67 ER -