@misc{indiciae556465b3024f,
  title = {A probing question.},
  author = {N H Stoller and K Ela},
  year = {1989},
  doi = {10.1016/s0002-8177(89)95006-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2607061/},
  note = {Source identifier: 2607061}
}