1. Relationship between hopelessness and ultimate suicide: A replication with psychiatric outpatients;Beck;The American Journal of Psychiatry,1990
2. Suicide ideation at its worst point: A predictor of eventual suicide in psychiatric outpatients;Beck;Suicide and Life-Threatening Behavior,1999
3. Hopelessness and suicidal behavior: An overview;Beck;JAMA Psychiatry,1975
4. Psychometric properties of the Beck Depression Inventory: Twenty-five years of evaluation;Beck;Clinical Psychology Review,1988