Beyond the group mind: a quantitative review of the interindividual-intergroup discontinuity effect
Psychological Bulletin (2003) - Comment
pubmed: 12956540  doi: 10.1037/0033-2909.129.5.698  issn: 0033-2909  issn: 1939-1455 

Tim Wildschut, Brad Pinter, Jack L. Vevea, Chester A. Insko, John Schopler