1. Holmboe R. , and Astrup C. (1957). ‘Follow-up study of 255 patients with acute schizophrenia and schizophreniform psychoses.’ Acta Psychiatrica Scandinavica. Suppl. 115.
2. ‘Nature of the schizophrenic process.’;Jenkins;Archives of Neorology and Psychiatry,1950
3. Cullen W. (1960). ‘Suicide in the Royal Navy.’ M.D. Thesis. Glasgow.
4. ‘The reporting of recent stress in the lives of psychiatric patients.’;Hudgens;British Journal of Psychiatry,1970
5. ‘Natural history studies in mental illness: a discussion based on a pilot study of obsessional states.’;Pollitt;Journal of Mental Science,1960