@misc{indiciae26c9fdcf3f18,
  title = {Problem solving and symbolic processes.},
  author = {D M JOHNSON},
  year = {1950},
  doi = {10.1146/annurev.ps.01.020150.001501},
  url = {https://pubmed.ncbi.nlm.nih.gov/14771880/},
  note = {Source identifier: 14771880}
}