PER: 2006 Volume 9 No 1 http://hdl.handle.net/10394/1228 2013-06-19T00:54:09Z Sustainable development and the nature of environmental legal principles http://hdl.handle.net/10394/1234 2006-01-01T00:00:00Z Clearing a path towards effective alien invasive control: the legal conundrum http://hdl.handle.net/10394/1233 2006-01-01T00:00:00Z Ex post facto authorisation in South African environmental assessment legislation: a critical review http://hdl.handle.net/10394/1232 2006-01-01T00:00:00Z Improving unsustainable environmental governance in South Africa: the case for holistic governance http://hdl.handle.net/10394/1231 2006-01-01T00:00:00Z