@misc{1201926, author = {Stephen M Seltzer}, title = {Air-kerma-rate coefficients for selected photon-emitting radionuclide sources:}, year = {2003}, month = {2003-01-01 05:01:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.IR.7092}, language = {en}, }