@misc{1166611, author = {Velma I Burns}, title = {Design and calibration of luminance standards for P4 phosphor:}, year = {1960}, month = {1960-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.RPT.6596}, language = {en}, }