TY - RPRT TI - Optical materials characterization AU - Feldman, Albert AU - Horowitz, Deane AU - Waxler, Roy M AU - Malitson, Irving AU - Dodge, Marilyn J PY - 1975 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 75-639 DO - 10.6028/NBS.IR.75-639 ER -