@article{understandingvirtualnodesoversmoothing,
  title = {Understanding Virtual Nodes: Oversmoothing, Oversquashing, and Node Heterogeneity},
  author = {Joshua Southern and Francesco Di Giovanni and Michael Bronstein and Johannes F. Lutzeyer},
  year = {2024},
  eprint = {2405.13526},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2405.13526v1},
}