References
- Jaspers K. General Psychopathology. Manchester: Manchester University Press, 1963 (translation by Hoenig J, Hamilton MW). (Originally published in 1959)
- Wernicke C. Fundamentals of Psychiatry. Leipzig: Thieme, 1906.
- McKenna P. Disorders with overvalued ideas. British Journal of Psychiatry 1984; 145:579–585.