1. In-group bias in the minimal intergroup situation: A cognitive-motivational analysis.
2. (1972). Test d2 — Aufmerksamkeits-Belustungs-Test, Hogrefe, Göttingen.
3. and (1995). ‘Positive–negative asymmetry in social discrimination: The impact of stimulus-valence and size- and status-differentials on intergroup evaluations’, British Journal of Social Psychology (in press).
4. (1984). ‘The role of similarity in intergroup relations.’ In: (Ed.) The Social Dimension: European developments in Social Psychology, Cambridge University Press, Cambridge.
5. Explaining intergroup differentiation in an industrial organization