1. Anxiety and its disorder. The nature and treatment of anxiety and Panic;Barlow,1988
2. Cognitive therapy for emotional disorders;Beck,1976
3. Anxiety disorders and Phobias: a cognitive perspective;Beck,1985
4. Panic disorder: From theory to therapy;Clark,1996
5. A comparison of cognitive therapy, applied relaxation and imipramine in the treatment of panic disorder;Clark;Br J Psychiatry,1994