@Article{yalta-yalta:2018,
  author={A. Talha Yalta and A. Yasemin Yalta},
  title={Are Credit Rating Agencies Regionally Biased?},
  journal={Economic Systems},
  year=2018,
  volume={42},
  number={4},
  pages={682--94},
  url={https://www.sciencedirect.com/science/article/pii/S0939362518305053}
}