1. The relationship between ratio estimates and stimulus dispersion;Björkman,1960
2. A further study of the relation between subjective distance and emotional involvement;Bratfisch;Acta Psychologica,1969
3. Subjective temporal distance and emotional involvement;Bratfisch,1970
4. Psychological time in health and disease;Cohen,1967
5. An experimental study of comparative judgments of time;Cohen;British Journal of Psychology,1954