@article{watson1988,
  title={Development and validation of brief measures of positive and negative affect: The PANAS scales.},
  author={David Watson and Lee A. Clark and Auke Tellegen},
  year={1988},
  journal={Journal of Personality and Social Psychology},
  doi={10.1037//0022-3514.54.6.1063},
  url={https://doi.org/10.1037//0022-3514.54.6.1063}
}