1. Ackerknecht EH (1985) Kurze Geschichte der Psychiatrie. Enke, Stuttgart
2. Akiskal HS (1978) Psychiatric diagnosis. Exploration of biological predictors. SP Medical & Scientific Books, New York
3. Alanen Y (1984) On psychiatric illness models and the research methods connected with them. Psychiatria Fennica 15: 9–18
4. AMDP (Arbeitsgemeinschaft Methodik und Dokumentation in der Psychiatrie) (1997) Das AMDP-System. Manual zur Dokumentation psychiatrischer Befunde. Hogrefe, Göttingen
5. Andrews G, Goldberg DP, Krueger RF et al. (2009) Exploring the feasibility of a meta-structure for DSM-V and ICD-11: could it improve utility and validity? Psychol Med 39: 1993–2000