Dover, G., & Powers, M. E. (2003). Reliability of joint position sense and force-reproduction measures during internal and external rotation of the shoulder. Journal of athletic training, 38(4), S. 304-310. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC314388/pdf/attr_38_04_0304.pdf

Dover, Geoffrey, and Michael E. Powers. "Reliability of Joint Position Sense and Force-reproduction Measures During Internal and External Rotation of the Shoulder." Journal of Athletic Training 38, no. 4 (2003): S. 304-310.

Dover, Geoffrey, and Michael E. Powers. "Reliability of Joint Position Sense and Force-reproduction Measures During Internal and External Rotation of the Shoulder." Journal of Athletic Training 38.4 (2003): S. 304-310.