- The artificial human, by Wilfried Nelles, 2022
- Classical Family Constellations, by Wilfried Nelles, 2007
- Past and Present, by Wilfried Nelles, 2006
- The Shadow of Freedom: Neurosis, by Coen Aalders, on Linkedin
- Hellinger’s blind spot: the purpose of the child’s attachment to a family system and the necessity of detachment to become an adult, by Coen Aalders, on Linkedin
- Is a Bigger Consciousness a Better Consciousness?, by Coen Aalders, on Linkedin