Zhang, J. , Rapelje, A. , Farr, C. , Colwell, K. , Chen, Z. (2013). 'Effects of a Recreational Workout Program on Task-Analyzed Exercise Performance of Adults with Severe Cognitive Impairments'. World Academy of Science, Engineering and Technology, Open Science Index 78, International Journal of Medical and Health Sciences, 7(6), 279 - 283.