@misc{indiciae74ed7ad32a74,
  title = {Exploratory play with objects: basic cognitive processes and individual differences.},
  author = {H A Ruff and L M Saltarelli},
  year = {1993},
  doi = {10.1002/cd.23219935903},
  url = {https://pubmed.ncbi.nlm.nih.gov/8483525/},
  note = {Source identifier: 8483525}
}