TY - GEN AU - Nicodemus, F E AU - Richmond, J C AU - Hsia, J J AU - Ginsberg, I W AU - Limperis, T C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1977-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.MONO.160 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1977 TI - Geometrical considerations and nomenclature for reflectance: ER -