@article{sdssj21250813theevidenceforthe,
  title = {SDSS J2125-0813: the evidence for the origination of optical FeII emission lines from accretion disk near central black hole},
  author = {Zhang Xue-Guang and D. Dultzin-Hacyan and Wang Ting-Gui},
  year = {2006},
  eprint = {astro-ph/0607566},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/astro-ph/0607566v1},
}