TY - JOUR AU - L Benedict AU - Eric Shirley AU - Robert Bohn C2 - Physical Review Letters DA - 1998-05-01 LA - en M1 - 80 PB - Physical Review Letters PY - 1998 TI - Optical Absorption of Insulators and the Electron-Hole Interaction: An Ab Initio Calculation UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=841268 ER -