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Oota, Akio; Sasaki, Yoshinobu; Ohkubo, Masataka; Hioki, Tatsumi . (1988). Superconducting and Magnetic Properties of the High- <i>T</i> <sub/>c</sub> and High-Density Superconductor Y <sub/> 1- <i>x</i> </sub> Lu <sub/><i>x</i> </sub> Ba <sub/>2</sub> Cu <sub/>3</sub> O <sub/>7-δ</sub>. Japanese Journal of Applied Physics, 27(Part 2, No. 8), L1425–L1428. doi:10.1143/JJAP.27.L1425 
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