@article{1092221,
  author = {K. Hada and M. Kino and H. Nagai and A. Doi and Y. Hagiwara and M. Honma and M. Giroletti and G. Giovannini and N. Kawaguchi},
  title = {VLBI Observations of the Jet in M 87 during the Very High Energy γ-Ray Flare in 2010 April},
  year = {2012},
  journal = {ApJ},
  volume = {760},
  pages = {52},
  doi = {10.1088/0004-637X/760/1/52},
  language = {eng},
}