Neutron Age Determination in Fast Reactor Materials using the Group MethodMarina F. Kabanova, Aleksey V. Yuzhakov, Arian V. Kuzmin, Yuriy V. Kobenko and Elena S. RiabovaMATEC Web Conf., 72 (2016) 01040DOI: https://doi.org/10.1051/matecconf/20167201040