@misc{indiciae7902c94f543d,
  title = {Concept usage in schizophrenic children.},
  author = {H A Walker and M Bortner},
  year = {1975},
  doi = {10.1007/bf01537932},
  url = {https://pubmed.ncbi.nlm.nih.gov/1174118/},
  note = {Source identifier: 1174118}
}