1. Environmental indices;Alberti,1990
2. Social indicators and quality of life research: Toward synthesis;Beesley;Environments,1990
3. Social Measurements and Social Indicators;Carley,1981
4. Council Directive, 7 June 1990 on the freedom of access to information on the environment;Commission of the European Communities (CEC);Official Journal of the European Communities,1990
5. Social Indicators and Public Policy;Innes,1975