[LN-D-21] YBa2Cu3O7-δ-Ag-Al/Al2O3/Pb Superconducting Tunnel Junctions M. A. M. Gijs, D. Scholten, Th. van Rooy, A. M. Gerrits, M. F. H. Schuurmans (1.Philips Research Laboratories) https://doi.org/10.7567/SSDM.1990.LN-D-21