| 1995 | Development of a curriculum “Mediation” for staff of development projects in Latin America. |
| 1996 | Conducted a workshop “Mediation” in Quito, Ecuador for Latin American development aid experts, together with B. Gnass. |
| 1997 | Conducted a mediation workshop in Santa Marta, Colombia together with B. Gnass. |
| 2000 | Member of the mission in Guatemala for the conceptual development of a peace and reconciliation program. |
| 2003 | Member of the Mission to Guatemala to develop the mediation component of the Peace and Reconciliation Program. |
| 2005 | Conception of a curriculum “Supervision Training” in Guatemala for psychosocial professionals in the framework of the GTZ Peace and Reconciliation Program. |
| 2005-2007 | Implementation of the supervision training. |
| 2008 | Evaluation, planning and consulting for the implementation of supervision in the National Program for the Compensation of War Victims and for Staff in the Archives of the National Police for Dealing with the Past. |