@misc{indiciaebe0e0593f03a,
  title = {Learning to count: a difficult task?},
  author = {J Porter},
  year = {1999},
  doi = {10.3104/reports.99},
  url = {https://pubmed.ncbi.nlm.nih.gov/11276983/},
  note = {Source identifier: 11276983}
}