@misc{1183461, author = {William E Case}, title = {Quality assurance program for the NBS C, K, and Q laser calibration systems:}, year = {1979}, month = {1979-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.IR.79-1619}, language = {en}, }