organization board
SECRETARY-GENERAL:
![](../images/kolwes2019_160.jpg)
Dr. Hans Roger Kolwes
Dr. Hans Roger Kolwes
Bracken 8
42279 Wuppertal
GERMANY
telephone +49 (0) 202 662170
telefax +49 (0) 202 661569
e-mail to the secretary-general
TECHNICAL DIRECTOR:
![](../images/patz_michael_160.jpg)
Michael Patz
Michael Patz
Horststrasse 48
44625 Herne
GERMANY
telephone: +49 (0) 2325 466036
e-mail to the technical director