APA (7th ed.) Citation

Stein, P. K., Domitrovich, P. P., Lundequam, E. J., Duntley, S. P., Freedland, K. E., & Carney, R. M. (2006). Circadian and ultradian rhythms in heart rate variability. Biomedizinische Technik, 51(4), 155-158. https://doi.org/10.1515/BMT.2006.026

Chicago Style (17th ed.) Citation

Stein, Phyllis K., Peter P. Domitrovich, Eric J. Lundequam, Stephen P. Duntley, Kenneth E. Freedland, and Robert M. Carney. "Circadian and Ultradian Rhythms in Heart Rate Variability." Biomedizinische Technik 51, no. 4 (2006): 155-158. https://doi.org/10.1515/BMT.2006.026.

MLA (9th ed.) Citation

Stein, Phyllis K., et al. "Circadian and Ultradian Rhythms in Heart Rate Variability." Biomedizinische Technik, vol. 51, no. 4, 2006, pp. 155-158, https://doi.org/10.1515/BMT.2006.026.