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Tetlock, P. E. (1984). «Cognitive style and political belief systems in the British House of Commons». Journal of Personality and Social Psychology46 (2): 365-375. doi:10.1037/0022-3514.46.2.365.
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Smithers, A. G.; Lobley, D. M. (1978). «Dogmatism, social attitudes and personality». British Journal of Social & Clinical Psychology17 (2): 135-142. PMID647168. doi:10.1111/j.2044-8260.1978.tb00255.x.