Nunan, D., Donovan, G., Jakovljevic, D., Hodges, L., Sandercock, G., & Brodie, D. (2009). Validity and reliability of short-term heart-rate variability from the Polar S810.
Chicago-viite (17. p.)Nunan, D., G. Donovan, D. Jakovljevic, L. Hodges, G. Sandercock, ja D. Brodie. Validity and Reliability of Short-term Heart-rate Variability from the Polar S810. 2009.
MLA-viite (9. p.)Nunan, D., et al. Validity and Reliability of Short-term Heart-rate Variability from the Polar S810. 2009.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.