@article{1092191,
  author = {K. Akiyama and R. Takahashi and M. Honma and T. Oyama and H. Kobayashi},
  title = {Multi-Epoch VERA Observations of Sagittarius A*. I. Images and Structural Variability},
  year = {2013},
  journal = {PASJ},
  volume = {65},
  pages = {91},
  doi = {10.1093/pasj/65.4.91},
  language = {eng},
}