@misc{indiciae173ba1af4ce5,
  title = {[A differential methodological test of the intelligence problem].},
  author = {S Ertel},
  year = {1966},
  doi = {10.1007/bf00421249},
  url = {https://pubmed.ncbi.nlm.nih.gov/5973918/},
  note = {Source identifier: 5973918}
}