1. Our Common Future;WCED,1987
2. Total Quality Management;Oakland,1989
3. Achieving real environmental improvements using value:impact assessment;Hindle;Long Range Planning,1993
4. Laying down principles for assessments of risks to man and the environment of substances notified in accordance with Council Directive 67/458/EEC.O.J. L 227/9;Commission directive 93/67/EEC,1993