@misc{Rapp2026friction,
  author = {Rapp, Stefan},
  title = {{Friction: Boundary Signal of Finite Load-Bearing Capacity in Subjective, Intersubjective, and Functional-Empirical Domains}},
  year = {2026},
  publisher = {Zenodo},
  doi = {10.5281/zenodo.18434699},
  url = {https://doi.org/10.5281/zenodo.18434699},
  language = {english},
  note = {Last revised: 27 May 2026}
}