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Buckworth, J.; Nigg, C. R. (July 2004). Motivation to Adhere: Using the Transtheoretical Model (Unpublished). In: American Psychological Association Conference. Honolulu, HI.
Nigg, C. R.; Buckworth, J. (2004). Maintaining Health Behaviors: An Application of the Transtheoretical Model. International journal of behavioral medicine, 11(Suppl.), p. 354. Springer
