1. “AIP Handbook,”;Frederikse,1972
2. “Raman Effect,”;Wilkinson,1973
3. “Properties of the Thirty-Two Point Groups,”;Koster,1963
4. “Landolt—Börnstein Numerical Data and Functional Relationships in Science and Technology,”;Hellewege,1985
5. “Space Groups for Solid State Scientists,”;Burns,1978