The complexity of the stamp folding problem

Takuya Umesato, Toshiki Saitoh, Ryuhei Uehara, Hiro Ito, Yoshio Okamoto. The complexity of the stamp folding problem. Theoretical Computer Science, 497:13-19, 2013. [doi]

@article{UmesatoSUIO13,
  title = {The complexity of the stamp folding problem},
  author = {Takuya Umesato and Toshiki Saitoh and Ryuhei Uehara and Hiro Ito and Yoshio Okamoto},
  year = {2013},
  doi = {10.1016/j.tcs.2012.08.006},
  url = {http://dx.doi.org/10.1016/j.tcs.2012.08.006},
  researchr = {https://researchr.org/publication/UmesatoSUIO13},
  cites = {0},
  citedby = {0},
  journal = {Theoretical Computer Science},
  volume = {497},
  pages = {13-19},
}