TY - JOUR AU - Denis Bergeron AU - Jeffrey Cessna AU - Brian Zimmerman C2 - Applied Radiation and Isotopes DA - 2015-03-05 DO - https://doi.org/10.1016/j.apradiso.2015.03.008 LA - en M1 - 101 PB - Applied Radiation and Isotopes PY - 2015 TI - Secondary standards for 223Ra revised ER -