1. Institute of Concrete Structures Technische Universität Dresden,Dresden,Germany,D-01062
2. IBB Ingenieurbüro Baustatik Bautechnik,Dresden,Germany,D-01189
3. sudholt-wasemann GmbH,Herzebrock-Clarholz,Germany,D-33442
4. Alfred-Wegener-Institute Helmholtz Center for Polar and Marine Research,Bremerhaven,Germany,D-27570
5. CARBOCON GMBH,Dresden,Germany,D-01067