STUDIES OF HYDROGEN TRAPPED BY NITROGEN OR OXYGEN IN NIOBIUM WITH ULTRASONIC ATTENUATION TECHNIQUE AND RESISTIVITY MEASUREMENTS SAN-QIANG SHI et W. B. LIJ. Phys. Colloques, 46 C10 (1985) C10-91-C10-94DOI: https://doi.org/10.1051/jphyscol:19851020
