| Business Address: | Guido Bracke, PhD, Diploma in Chemistry |
| Institute for Safety Technology | |
| Schwertnergasse 1 | |
| D - 50667 Cologne, Germany | |
| Tel: + 49 221 2068 608 (D: 0221 2068 608) | |
| Fax: + 49 221 2068 891 (D: 0221 2068 891) | |
| e-mail: bgu ?? istec.grs.de | |
| Private Address: | Guido Bracke, PhD, Diploma in Chemistry |
| Volksgartenstrasse 28 | |
| D - 50677 Cologne | |
| Tel: + 49 221 9460364 (D: 0221 9460364) | |
| Mobile: + 49 160 3055 697 (D: 0160 3055 697) | |
| e-mail: bracke ?? illite.u-strasbg.fr | |
| homepage: http://www.reocities.com/gb2563/ |