@article{graphsignalprocessingovermultilayer,
  title = {Image Processing via Multilayer Graph Spectra},
  author = {Songyang Zhang and Qinwen Deng and Zhi Ding},
  year = {2021},
  eprint = {2108.13639},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2108.13639v3},
}