Temperature dependence of the YBa2Cu3O7 energy gap in differently oriented tunnel junctionsF. Giubileo, A. Jossa, F. Bobba, A. I. Akimenko and A. M. CucoloEur. Phys. J. B, 24 3 (2001) 305-308DOI: https://doi.org/10.1007/s10051-001-8678-1