@article{withalittlehelpfrommyfriendscollectivema,
  title = {With a Little Help From My Friends: Collective Manipulation in Risk-Controlling Recommender Systems},
  author = {Giovanni De Toni and Cristian Consonni and Erasmo Purificato and Emilia Gomez and Bruno Lepri},
  year = {2026},
  eprint = {2603.28476},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.28476},
}