@misc{indiciaee1d8415ff384,
  title = {Quantity conceptions in junior and senior high school students.},
  author = {D ELKIND},
  year = {1961},
  doi = {10.1111/j.1467-8624.1961.tb05051.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/13726388/},
  note = {Source identifier: 13726388}
}