@inproceedings{collectiverobustnesscertificates,
  title = {Collective Robustness Certificates},
  author = {Jan Schuchardt and Aleksandar Bojchevski and Johannes Klicpera and Stephan Günnemann},
  year = {2021},
  booktitle = {ICLR 2021 1},
  url = {https://openreview.net/forum?id=ULQdiUTHe3y},
}