@article{green_schroll_snashall_taillefer_2017, 
  title={The Ext algebra of a Brauer graph algebra}, 
  volume={11}, 
  DOI={10.4171/jncg/11-2-4}, 
  publisher={European Mathematical Publishing House}, 
  author={Green and Schroll and Snashall and Taillefer}, 
  year={2017}
  }