TY - JOUR AU - Jeffrey Cessna AU - Ryan Fitzgerald AU - Brian Zimmerman AU - Lizbeth Laureano-Perez AU - Denis Bergeron C2 - Applied Radiation and Isotopes DA - 2017-11-07 DO - https://doi.org/10.1016/j.apradiso.2017.10.052 LA - en M1 - 134 PB - Applied Radiation and Isotopes PY - 2017 TI - Results of an International Comparison of Activity Measurements of 68Ge ER -