@article{1568597,
  author = {et M. Wielgus al.},
  title = {Monitoring the Morphology of M87* in 2009-2017 with the Event Horizon Telescope},
  year = {2020},
  journal = {Astrophysical Journal},
  volume = {901},
  pages = {28},
  url = {https://ui.adsabs.harvard.edu/abs/2020ApJ...901...67W/abstract},
  language = {eng},
}