@misc{kriebel2026_kourovka_problem_16_45_counterexample,
  author = {Alec Kriebel},
  title = {A counterexample to Kourovka Notebook Problem 16.45},
  year = {2026},
  doi = {10.5281/zenodo.22929486},
  url = {https://doi.org/10.5281/zenodo.22929486},
  note = {Unrefereed preprint, version 1.0.1}
}