The main members of the Ingeokring Board (Stichting IAEG 1990):
President | Dr. ir. S. Slob (Siefko)
Secretary | Dr. ir. A. Elkadi (Ahmed)
Treasurer | Ir. J.D. Adrichem (John)
President | Dr. ir. S. Slob (Siefko)
Secretary | Dr. ir. A. Elkadi (Ahmed)
Treasurer | Ir. J.D. Adrichem (John)