@article{penya2016anomaly,
  title={Anomaly-based user comments detection in social news websites using troll user comments as normality representation},
  author={de-la-Pe{\~n}a-Sordo, Jorge and Pastor-L{\'o}pez, Iker and Ugarte-Pedrero, Xabier and Santos, Igor and Bringas, Pablo G},
  journal={Logic Journal of IGPL},
  volume={24},
  number={6}
  pages={883--898},
  year={2016},
  publisher={Oxford University Press}
}