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Mâsse, Louise C.; Nigg, Claudio R.; Basen-Engquist, Karen; Atienza, Audie A. (2011). Understanding the mechanism of physical activity behavior change: Challenges and a call for action. Psychology of sport and exercise, 12(1), pp. 1-6. Elsevier Science 10.1016/j.psychsport.2010.07.011
