@article{blaschke2022pedal,
  author = {Blaschke, P. and Blaschke, F. and Blaschke, M.},
  title = {Pedal coordinates and free double linkage},
  journal = {Journal of Geometry and Physics},
  publisher = {Elsevier BV},
  volume = {171},
  pages = {104397},
  year = {2022},
  doi = {10.1016/j.geomphys.2021.104397},
  issn = {0393-0440}
}