Wennman, H. (2012). Habitual physical activity and heart rate variability in 12-year old children.
Chicago-viite (17. p.)Wennman, Heini. Habitual Physical Activity and Heart Rate Variability in 12-year Old Children. Jyväskylä, 2012.
MLA-viite (9. p.)Wennman, Heini. Habitual Physical Activity and Heart Rate Variability in 12-year Old Children. 2012.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.