@article{ajzen1991,
  title={The theory of planned behavior},
  author={Icek Ajzen},
  year={1991},
  journal={Organizational Behavior and Human Decision Processes},
  doi={10.1016/0749-5978(91)90020-t},
  url={https://doi.org/10.1016/0749-5978(91)90020-t}
}