@misc{indiciae911323cc276c,
  title = {Validation of a classroom observation code for hyperactive children.},
  author = {H Abikoff and R Gittelmann-Klein and D F Klein},
  year = {1977},
  doi = {10.1037//0022-006x.45.5.772},
  url = {https://pubmed.ncbi.nlm.nih.gov/903441/},
  note = {Source identifier: 903441}
}