Krasilshchikov, O., N. Sungkit, T. Shihabudin, I. Shaw, and B. Shaw. “Effects of an Eight-Week Training Programme on Pain Relief and Physical Condition of Overweight and Obese Women With Early Stage Primary Knee Osteoarthritis”. African Journal for Physical Activity and Health Sciences, vol. 17, no. 2, July 2011, doi:10.4314/ajpherd.v17i2.67669.