@article{bang,
  author = {Bang, Th{\o}ger},
  title = {A solution of the ``plank problem''},
  journal = {Proceedings of the American Mathematical Society},
  volume = {2},
  number = {6},
  year = {1951},
  pages = {990--993},
  note = {\href{https://doi.org/10.2307/2031721}{doi:10.2307/2031721}}
}
@misc{bezdek-khan,
  author = {Bezdek, K{\'a}roly and Khan, Muhammad A.},
  title = {The geometry of homothetic covering and illumination},
  year = {2016},
  note = {arXiv:1602.06040v2, 18 July 2016.
    \url{https://arxiv.org/abs/1602.06040v2}}
}
@misc{bezdek-litvak,
  author = {Bezdek, K{\'a}roly and Litvak, Alexander E.},
  title = {Covering convex bodies by cylinders and lattice points by flats},
  year = {2009},
  note = {arXiv:0903.4842v1, 27 March 2009.
    \url{https://arxiv.org/abs/0903.4842v1}}
}
@misc{angular,
  author = {{OpenAI}},
  title = {Finite angular cylinder covers below the half-area bound},
  year = {2026},
  note = {Preprint, 27 September 2026, \texttt{openai/math}.
    \url{https://github.com/openai/math/blob/1581d4cbdd69a0faf34b2089614fe2a814316a6a/preprints/Finite-angular-cylinder-covers-below-the-half-area-bound-September-27-2026/main.pdf}}
}
@misc{ruled,
  author = {{OpenAI}},
  title = {Finite cylinder approximation of ruled sets},
  year = {2026},
  note = {Preprint, 27 September 2026, \texttt{openai/math}.
    \url{https://github.com/openai/math/blob/1581d4cbdd69a0faf34b2089614fe2a814316a6a/preprints/Finite-cylinder-approximation-of-ruled-sets-September-27-2026/main.pdf}}
}
@misc{slope,
  author = {{OpenAI}},
  title = {Slope-field perturbations of the two-cylinder covering},
  year = {2026},
  note = {Preprint, 27 September 2026, \texttt{openai/math}.
    \url{https://github.com/openai/math/blob/1581d4cbdd69a0faf34b2089614fe2a814316a6a/preprints/Slope-field-perturbations-of-the-two-cylinder-covering-September-27-2026/main.pdf}}
}
@misc{radial,
  author = {{OpenAI}},
  title = {Finite triangular approximation of radial sweeps},
  year = {2026},
  note = {Preprint, 27 September 2026, \texttt{openai/math}.
    \url{https://github.com/openai/math/blob/1581d4cbdd69a0faf34b2089614fe2a814316a6a/preprints/Finite-triangular-approximation-of-radial-sweeps-September-27-2026/main.pdf}}
}