@article{CTT100798614,
  author = {T. Sudayama and Y. Wakisaka and K. Takubo and T. Mizokawa and W. Kobayashi and I. Terasaki and S. Tanaka and Y. Maeno and M. Arita and H. Namatame and M. Taniguchi},
  title = {Bulk-sensitive photoemission study of ACu(3)Ru(4)O(12) (A=Ca, Na, and La) with heavy-fermion behavior},
  journal = {Physical Review B},
  year = 2009,
}

@article{CTT100798639,
  author = {T. T. Tran and K. Takubo and T. Mizokawa and W. Kobayashi and I. Terasaki},
  title = {Electronic structure of CaCu3Ru4O12 studied by x-ray photoemission spectroscopy},
  journal = {Physical Review B},
  year = 2006,
}