@misc{indiciaeeae3e70f59fb,
  title = {Efficiency under record performance demands: exertion control--an individual difference variable?},
  author = {H Heckhausen and H Strang},
  year = {1988},
  doi = {10.1037//0022-3514.55.3.489},
  url = {https://pubmed.ncbi.nlm.nih.gov/3171919/},
  note = {Source identifier: 3171919}
}