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  title = {Cu NMR/NQR Studies on Magnetism in Impurity/Hole-Doped Spin-Ladder Compounds},
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@article{CTT100625117,
  author = {S. Ohsugi and Y. Kitaoka and M. Azuma and Y. Fujishiro and M. Takano},
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@article{CTT100625119,
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  title = {Impurity Effect of the Spin-Ladder System SrCu2O3},
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}

@article{CTT100622360,
  author = {S Ohsugi and Y. Tokunaga and K. Ishida and Y. Kitaoka and M. Azuma and Yoshie Fujishiro and M. Takano},
  title = {Impurity-Induced Staggered Polarization and Antiferromagnetic Order in Spin-1/2 Heisenberg Two-Leg Ladder Compound SrCu2O3: Extensive Cu NMR and NQR Studies},
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}

@article{CTT100626869,
  author = {M. Azuma and Y. Fujishiro and M. Takano and M. Nohara and ひでのり たかぎ and S. Ohsugi and Y. Kitaoka and R.S. Eccleston},
  title = {Impurity Effects on a Two-Leg Spin Ladder Compound SrCu2O3},
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  year = 1998,
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@article{CTT100626870,
  author = {M. Takano and M. Azuma and Y. Fujishiro and M. Nohara and H. Takagi and Naoki Fujiwara and H. Yasuoka and Shigeki Osugi and Y. Kitaoka and R.S. Eccleston},
  title = {Impurity Effects on a 2-Leg Spin Ladder Compound SrCu2O3},
  journal = {Physica C},
  year = 1997,
}

@article{CTT100621213,
  author = {K. Ishida and Y. Kitaoka and Y. Tokunaga and S Matsumoto and K. Asayama and M. Azuma and Z. Hiroi and M. Takano},
  title = {Spin Correlation and Spin Gap in Quasi-One-Dimensional Spin-1/2 Cuprate Oxides: A 63Cu NMR Study},
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}

@article{CTT100621206,
  author = {K. Ishida and Y Tokunaga and Y. Kitaoka and K. Asayama and M. Azuma and Z. Hiroi and M. Takano},
  title = {Antiferromagnetic Nuclear Resonance of Cu in Infinite-Layer Compounds, SrCuO2 and Ca0.9Sr0.1CuO2 -Comparison between Hyperfine Coupling Constant in a CuO2 Plane and in a Spin-Ladder System-},
  journal = {J. Phys. Soc. Jpn.},
  year = 1996,
}

@article{CTT100621199,
  author = {Kenji Ishida and Yoshio Kitaoka and K Asayama and M. Azuma and Z. Hiroi and M. Takano},
  title = {Spin Gap Behavior in Ladder-Type of Quasi-One-Dimensional Spin (S=1/2) System SrCu2O3},
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}

@article{CTT100633331,
  author = {東正樹 and 広井善二 and 高野幹夫 and 北岡良雄 and 石田憲二},
  title = {擬一次元Srn-1Cun+1O2n (n=3, 5) の高圧合成とスピンギャップ},
  journal = {粉体および粉末冶金},
  year = 1994,
}

@inproceedings{CTT100644281,
  author = {tetsuko and L.A.Diago and T.Kitaoka and ICHIRO HAGIWARA},
  title = {Analyzing facial expressions with fuzzy quantification theory Ⅱ},
  booktitle = {indefinite generalized eigenvalue problem,JJIAM Special},
  year = 2012,
}