THE INFLUENCE OF N-IMPURITIES ON THE DIFFUSION COEFFICIENT OF H AND D IN Nb AND Ta Zh. Qi, J. Völkl, H. Wipf et G. AlefeldJ. Phys. Colloques, 42 C5 (1981) C5-763-C5-768DOI: https://doi.org/10.1051/jphyscol:19815118