@misc{indiciaeb42af69cae9b,
  title = {Developmental sequences in class reasoning and propositional reasoning.},
  author = {U Müller and B Sokol and W F Overton},
  year = {1999},
  doi = {10.1006/jecp.1999.2510},
  url = {https://pubmed.ncbi.nlm.nih.gov/10479396/},
  note = {Source identifier: 10479396}
}