1. Ph.D. Student, Faculty of Civil and Environmental Engineering, Ruhr-Univ. Bochum, Bochum, Germany.
2. Professor, Faculty of Civil and Environmental Engineering, Ruhr-Univ. Bochum, Bochum, Germany.
3. Professor, Detmold School of Architecture and Interior Architecture, Univ. of Applied Sciences and Arts, Detmold, Germany.