d.c. sputtering elaboration of thin films of the high-Tc superconductor YBa2Cu3O7-x: evidence for strong film-substrate interactions A. Perrin, Z.Z. Li, O. Peña, J. Padiou et M. SergentRev. Phys. Appl. (Paris), 23 3 (1988) 257-264DOI: https://doi.org/10.1051/rphysap:01988002303025700