1. Unit of Environmental Engineering, Dept. of Infrastructure Engineering, Univ. of Innsbruck, Innsbruck, Austria
2. Unit of Environmental Engineering, Dept. of Infrastructure Engineering, Univ. of Innsbruck, Innsbruck, Austria; Ph.D. Fellow, Austrian Academy of Sciences (ÖAW)
3. Unit of Environmental Engineering, Dept. of Infrastructure Engineering, Univ. of Innsbruck, Innsbruck, Austria.