1. WSP Australia; University of New South Wales; School of Biological, Earth & Environmental Sciences; 680 George Street Sydney, NSW 2001 Australia
2. University of Aston in Birmingham; Level 43, 680 George Street Sydney, NSW 2001 Australia
3. Maidl Tunnelconsultants GmbH & Co KG; Goethestraße 74 80336 Munich Germany