1. Distinguished Professor and Research Director, Centre for Geomechanics and Railway Engineering, Univ. of Wollongong, Wollongong, Australia.
2. Lecturer, Centre for Geomechanics and Railway Engineering, Univ. of Wollongong, Wollongong, Australia.
3. Formerly, Centre for Geomechanics and Railway Engineering, Univ. of Wollongong, Wollongong, Australia.