TY  - RPRT
TI  - Bidirectional reflectance distribution function of specular surfaces with hemispherical pits.
AU  - Sylvia C Pont
AU  - Jan J Koenderink
PY  - 2002
DO  - 10.1364/josaa.19.002456
UR  - https://pubmed.ncbi.nlm.nih.gov/12469741/
ID  - 12469741
ER  -