1. High quality refractory Josephson tunnel junctions utilizing thin aluminum layers
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3. A 4-kbit Josephson nondestructive read-out RAM operated at 580 psec and 6.7 mW
4. [4] V. Patel and J.E. Lukens, “Self-shunted Nb/AlOx/Nb Josephson junctions,” IEEE Trans. Appl. Supercond., vol.9, no.2, pp.3247-3250, June 1999.
5. Observation of multiple Andreev reflections in superconducting tunnel junctions