@inproceedings{pettersson2017triangulation,
  title={Triangulation in UX Studies: Learning from Experience},
  author={Pettersson, Ingrid and Frison, Anna-Katharina and Lachner, Florian and Riener, Andreas and Nolhage, Jesper},
  booktitle={Proceedings of the 2016 ACM Conference Companion Publication on Designing Interactive Systems},
  pages={341--344},
  year={2017},
  organization={ACM}
}