Microwave Nonlinearities in High-Tc Superconductors: The Truth Is out There - Anlage, Steven M.; Hu, Wensheng; Vlahacos, C. P.; Steinhauer, David; Feenstra, B. J.; Dutta, Sudeep K.; Thanawalla, Ashfaq; Wellstood, F. C. (Springer, 1999)
http://dx.doi.org/10.1023/A:1007753316152
Keywords: ZN; U