@article{reciprocalrecommendersystemsanalysisof,
  title = {Reciprocal Recommender Systems: Analysis of State-of-Art Literature, Challenges and Opportunities towards Social Recommendation},
  author = {Ivan Palomares and Carlos Porcel and Luiz Pizzato and Ido Guy and Enrique Herrera-Viedma},
  year = {2020},
  eprint = {2007.16120},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2007.16120v3},
}