@misc{indiciae0e17c4b83f06,
  title = {Logic in infancy.},
  author = {J Langer},
  doi = {10.1016/0010-0277(81)90043-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/7198535/},
  note = {Source identifier: 7198535}
}