@misc{Nifa2026SharpDefectBounds,
  author = {Nifa, Anass},
  title = {{Sharp defect bounds for regular-matroid Jacobians}},
  year = {2026},
  doi = {10.5281/zenodo.23548043},
  url = {https://anassnifa.com/papers/sharp-defect-bounds/},
  howpublished = {Preprint, Zenodo},
  note = {v2; initial manuscript date: 7 October 2026; updated: 22 October 2026},
}