@misc{1162391, author = {D N Langenberg and B N Taylor}, title = {Precision measurement and fundamental constants:}, year = {1971}, month = {1971-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.SP.343}, language = {en}, }