1. Benjamin Leighton, School of Civil Engineering, University of Sydney, NSW 2006, Australia. Email: benjaminleighton@me.com.
2. François Guillard, School of Civil Engineering, University of Sydney, NSW 2006, Australia. Email: francois.guillard@sydney.edu.au.
3. Karin Einav Perez, Brown Hotels, Tel Aviv 6380115, Israel. Email: putchnik@yahoo.com.
4. Itai Einav, School of Civil Engineering, University of Sydney, NSW 2006, Australia. Email: itai.einav@sydney.edu.au.