@misc{135946, author = {Stephen Seltzer}, title = {Air-Kerma-Rate Coefficients for Selected Photon-Emitting Radionuclide Sources}, year = {2004}, month = {2004-01-01}, publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD}, language = {en}, }