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Cosi, S.; Morales-Vives, F.; Canals, J.; Lorenzo-Seva, U. & Vigil-Colet, A. (2008). "Functional and dysfunctional impulsivity in childhood and adolescence". Psychological Reports. 103 (1): 67–76. doi:10.2466/pr0.103.1.67-76. PMID18982938.