@misc{indiciaec93c1fb3fb4e,
  title = {Optimum gradient of mountain paths.},
  author = {A E Minetti},
  year = {1995},
  doi = {10.1152/jappl.1995.79.5.1698},
  url = {https://pubmed.ncbi.nlm.nih.gov/8594031/},
  note = {Source identifier: 8594031}
}