@misc{indiciaec13a1e85b76e,
  title = {Measuring baseline-treatment differences in heart rate variability: variance versus successive difference mean square and beats per minute versus interbeat intervals.},
  author = {R J Heslegrave and J C Ogilvie and J J Furedy},
  year = {1979},
  doi = {10.1111/j.1469-8986.1979.tb01461.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/424498/},
  note = {Source identifier: 424498}
}