@misc{indiciae9006b4186b21,
  title = {Interaction of task difficulty, activation, and work load.},
  author = {H Sjöberg},
  year = {1977},
  doi = {10.1080/0097840x.1977.9936080},
  url = {https://pubmed.ncbi.nlm.nih.gov/845429/},
  note = {Source identifier: 845429}
}