@article{communitydetectionandportfolio,
  title = {Community detection and portfolio optimization},
  author = {Longfeng Zhao and Chao Wang and Gang-Jin Wang and H. Eugene Stanley and Lin Chen},
  year = {2021},
  eprint = {2112.13383},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2112.13383v1},
}