TY - RPRT TI - Circular of the Bureau of Standards no. 499: nuclear data- a collection of experimental values of half-lives, radiation energies, relative isotopic abundances, nuclear moments, and cross sections AU - Way, Katharine AU - Fano, Lilla AU - Scott, Millicent R AU - Thew, Karin PY - 1950 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS CIRC 499 DO - 10.6028/NBS.CIRC.499 ER -