@misc{indiciaeb1704e56a32a,
  title = {Approximate Entropy and Sample Entropy: A Comprehensive Tutorial},
  author = {Delgado-Bonal, Alfonso and Marshak, Alexander},
  year = {2019},
  url = {https://ntrs.nasa.gov/citations/20190025788},
  note = {Source identifier: 20190025788}
}