1. Department of Architecture and Civil Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden
2. MeSSO Research Group, Munster Technological University, T12 P928 Cork, Ireland
3. Department of Mathematics, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece
4. IVL Swedish Environmental Research Institute, 411 33 Gothenburg, Sweden