[The presumption of social hygiene and "social medicine" in the former DRG. Observations on the work by Prof. Ewert in "Das öffentliche Gesundheitswesen" 53 (1991) 61-67]. [electronic resource]
- Gesundheitswesen (Bundesverband der Arzte des Offentlichen Gesundheitsdienstes (Germany)) Jan 1992
- 44-5 p. digital