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Sherif, CW (August 1963). "Social categorization as a function of latitude of acceptance and series range". Journal of Abnormal and Social Psychology. 67 (2): 148–56. doi:10.1037/h0043022. PMID13977155.
Ledgerwood, Alison; Chaiken, Shelly (2007). "Priming Us and Them: Automatic Assimilation and Contrast in Group Attitudes". Journal of Personality and Social Psychology. 93 (6): 940–956. doi:10.1037/0022-3514.93.6.940. PMID18072847. S2CID30468863.
Ledgerwood, Alison; Chaiken, Shelly (2007). "Priming Us and Them: Automatic Assimilation and Contrast in Group Attitudes". Journal of Personality and Social Psychology. 93 (6): 940–956. doi:10.1037/0022-3514.93.6.940. PMID18072847. S2CID30468863.