1. Anxiety response patterns and etiological factors in dog-fearful and non-fearful subjects;Di Nardo;Behaviour Research and Therapy,1988
2. Field, A., Argyris, N., and Knowles, K. (2001). Who's afraid of the big bad wolf? Behaviour Research and Therapy, in press.
3. On Psychotherapy;Freud,1905
4. Psychology of Fear and Stress;Gray,1987
5. Dental Phobia;Lautch;British Journal of Psychiatry,1971