@misc{indiciaed4133015f966,
  title = {Symbolization, language, and chimpanzees: a theoretical reevaluation based on initial language acquisition processes in four young Pan troglodytes.},
  author = {E S Savage-Rumbaugh and D M Rumbaugh},
  year = {1978},
  doi = {10.1016/0093-934x(78)90063-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/737530/},
  note = {Source identifier: 737530}
}