Willett, G. M., Hyde, J. E., Uhrlaub, M. B., Wendel, C. A. & Karst, G. M. (2002, 22. January). Relative activity of abdominal muscles during commonly prescribed strengthening exercises. Zugriff unter http://www.ncbi.nlm.nih.gov/pubmed/11726260
APA-Zitierstil (7. Ausg.)Willett, G. M., Hyde, J. E., Uhrlaub, M. B., Wendel, C. A., & Karst, G. M. (2001). Relative activity of abdominal muscles during commonly prescribed strengthening exercises. The Journal of Strength and Conditioning Research, 15(4), 480-485.
Chicago-Zitierstil (17. Ausg.)Willett, G. M., J. E. Hyde, M. B. Uhrlaub, C. A. Wendel, und G. M. Karst. "Relative Activity of Abdominal Muscles During Commonly Prescribed Strengthening Exercises." The Journal of Strength and Conditioning Research 15, no. 4 (2001): 480-485.
MLA-Zitierstil (9. Ausg.)Willett, G. M., et al. "Relative Activity of Abdominal Muscles During Commonly Prescribed Strengthening Exercises." The Journal of Strength and Conditioning Research, vol. 15, no. 4, 2001, pp. 480-485.