1. Trauer und melancholie;Freud,1917e
2. Spiritually Integrated Psychotherapy. Understanding and Addressing the Sacred;Pargament,2011
3. Das ich und das es;Freud,1923b
4. Classics revisited: Freud's mourning and melancholia;Bradbury;Mortality,2001
5. On transience [vergänglichkeit];Freud,1916a