@misc{1152941, author = {B M Coursey}, title = {Interlaboratory intercomparisons of radioactivity measurements using National Bureau of Standards mixed radionuclide test solutions:}, year = {1975}, month = {1975-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NBS.TN.875}, language = {en}, }