Soil slope instability and stabilisation / ed. by Bruce F. Walker, Robin FellGeotechnical management of waste and contamination : proceedings of the Conference on geotechnical management of waste and contamination, Sydney, N.S.W., Australia, 22-23 March 1993 / ed. by Robin Fell, Tony Phillips, Charles GerrardAcceptable risks for major infrastructure : proceedings of the seminar on acceptable risks for extreme events in the planning and design of major infrastructure, Sydney, N.S.W., Australia, 26-27 April 1994 / ed. by Paul Heinrichs, Robin FellLandslide risk assessment / ed. by David M. Cruden, Robin Fell