@misc{indiciaee9d6917a5630,
  title = {[Affect and performance in simple problems].},
  author = {K C Klauer and M Siemer and J Stöber},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/1950019/},
  note = {Source identifier: 1950019}
}