1. Technische Universität Braunschweig; Institute of Building Materials, Concrete Construction and Fire Safety (iBMB); Braunschweig Germany
2. formerly: Technische Universität Braunschweig, Institute of Building Materials Concrete Construction and Fire Safety (iBMB), Braunschweig, Germany (today: Gruner AG; Basel Switzerland)
3. Gesellschaft für Anlagen-und Reaktorsicherheit (GRS) gGmbH; Köln Germany