Magnetic and transport measurements of Tl-1223 superconductors - Zheng, D. N.; Johnson, J. D.; Jones, A. R.; Campbell, A. M.; Liang, W. Y.; Doi, T.; Okada, M.; Higashyama, K. (American Institute of Physics (AIP), 1995)
http://dx.doi.org/10.1063/1.359282
Keywords: U