1. Appley MH, Trumbull R (1986) Development of the stress concept. In: Appley MH, Trumbull R (eds) Dynamics of stress. Plenum Press, New York
2. Bauer M et al (1980) Psychiatrie-Psychosomatik-Psychotherapie. Thieme, Stuttgart Blumer H (1956) Sociological analysis and the “variable”. Am sociol Rev 21: 683–690
3. Bolte KM (1983) Anmerkungen zu Aspekten und Problemen der Erforschung sozialer Ungleichheit. Soziale Welt, Sonderband 2: 391–408
4. Brown GW, Harris T (1978) Social origins of depression: A study of psychiatric disorder in women. Tavistock, London
5. Brown GW, Harris T (1986) Establishing causal links: the Bedford College studies of depression. In: Katschnig H (ed) Life stress and psychiatric disorders: controversial issues. Cambridge University Press, Cambridge, pp 107–187