Hydrogen uptake by high purity niobium studied by nuclear analytical methodsRick L. Paul, H. Heather Chen-Mayer, Ganapati Rao Myneni, William A. Lanford and Richard E. RickerMatériaux & Techniques, 91 7-8-9 (2003) 23-27DOI: https://doi.org/10.1051/mattech/200391070023