TY - JOUR AU - Levine, Zachary AU - Burnett, John AU - Shirley, Eric C2 - Physical Review B (Condensed Matter and Materials Physics) DA - 2003-01-01 LA - en M1 - 68 PB - Physical Review B (Condensed Matter and Materials Physics) PY - 2003 TI - The photoelastic and elastic properties of the fluorite structure materials, LiF, and Si ER -