F, I., F, P., A, S., D, L., & M, P. (2004). T-wave and heart rate variability changes to assess training in world-class athletes. Medicine & Science in Sports & Exercise, 36(8), 1342. https://doi.org/10.1249/01.mss.0000135796.75091.8a
Chicago Style (17th ed.) CitationF, Iellamo, Pigozzi F, Spataro A, Lucini D, and Pagani M. "T-wave and Heart Rate Variability Changes to Assess Training in World-class Athletes." Medicine & Science in Sports & Exercise 36, no. 8 (2004): 1342. https://doi.org/10.1249/01.mss.0000135796.75091.8a.
MLA (9th ed.) CitationF, Iellamo, et al. "T-wave and Heart Rate Variability Changes to Assess Training in World-class Athletes." Medicine & Science in Sports & Exercise, vol. 36, no. 8, 2004, p. 1342, https://doi.org/10.1249/01.mss.0000135796.75091.8a.