Cardiac-respiratory-somatic relationships and feedback effects in a multiple session heart rate control experiment.

@article{Levenson1979CardiacrespiratorysomaticRA,
  title={Cardiac-respiratory-somatic relationships and feedback effects in a multiple session heart rate control experiment.},
  author={Robert Wayne Levenson},
  journal={Psychophysiology},
  year={1979},
  volume={16 4},
  pages={367-73}
}