INFLUENCE OF Nb4O SUBOXIDES IN THE SUBSTRATE UPON PROPERTIES OF Nb3Sn TAPE SUPERCONDUCTOR J. Neuschl, D. Synak, M. Jergel, I. Hlásnik et J. IvanJ. Phys. Colloques, 45 C1 (1984) C1-413-C1-416DOI: https://doi.org/10.1051/jphyscol:1984184