@misc{1184831, author = {J Horlick and J Stevenson}, title = {Collaborative reference program for color and appearance ::retroreflectance}, year = {1978}, month = {1978-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.IR.78-1332}, language = {en}, }