@misc{kriebel2026_common_tangents_three_convex_sets_null,
  author = {Alec Kriebel},
  title = {The spatial locus of common tangents to three disjoint convex sets is null},
  year = {2026},
  doi = {10.5281/zenodo.23127955},
  url = {https://doi.org/10.5281/zenodo.23127955},
  note = {Unrefereed preprint, version 1.0}
}