@misc{1191686, author = {Ralph Stair}, title = {Circular of the Bureau of Standards no. 471::spectral-transmissive properties and use of eye-protective glasses}, year = {1948}, month = {1948-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.CIRC.471}, language = {en}, }