Savage, R., Millerchip, R., Whitehouse, G., & Edwards, R. (1991). Lumbar muscularity and its relationship with age, occupation and low back pain. European journal of applied physiology, 63(3/4), S. 265-268. doi:10.1007/BF00233859

Savage, R.A., R. Millerchip, G.H Whitehouse, and R.H.T Edwards. "Lumbar Muscularity and Its Relationship With Age, Occupation and Low Back Pain." European Journal of Applied Physiology 63, no. 3/4 (1991): S. 265-268.

Savage, R.A., R. Millerchip, G.H Whitehouse, and R.H.T Edwards. "Lumbar Muscularity and Its Relationship With Age, Occupation and Low Back Pain." European Journal of Applied Physiology 63.3/4 (1991): S. 265-268.