@misc{indiciaeb79ab2882770,
  title = {Effort perception in children.},
  author = {K L Lamb and R G Eston},
  year = {1997},
  doi = {10.2165/00007256-199723030-00001},
  url = {https://pubmed.ncbi.nlm.nih.gov/9108634/},
  note = {Source identifier: 9108634}
}