@misc{Kriebel2026RootDependentSpanningTrees,
  author = {Kriebel, Alec},
  title = {NP-completeness of aggregate root-dependent spanning-tree cost},
  year = {2026},
  month = {oct},
  day = {06},
  version = {1.0},
  publisher = {Zenodo},
  doi = {10.5281/zenodo.23181280},
  url = {https://zenodo.org/records/23181280},
  note = {Unrefereed preprint; extensive AI assistance; no external human peer review or formal proof certification},
  orcid = {0009-0001-9320-500X}
}