@article{ryan2000,
  title={Self-determination theory and the facilitation of intrinsic motivation, social development, and well-being.},
  author={Richard M. Ryan and Edward L. Deci},
  year={2000},
  journal={American Psychologist},
  doi={10.1037//0003-066x.55.1.68},
  url={https://doi.org/10.1037//0003-066x.55.1.68}
}