1. ENEA, 〈http://www.enea.it/it/Ricerca_sviluppo/documenti/ricerca-di-sistema-elettrico/efficienza-energetica-servizi/rds-58.pdf〉
2. Our Common Future;World Commission on Environment and Development,1987
3. Additional renewable energy growth through small scale community oriented energy policies;Hain;Energy Policy,2005
4. World Conservation Strategy of the Living Natural Resources or a Sustainable Development;IUCN, WWF, UNEP,1980
5. A renewable island life: electricity from renewables on small islands;Indradip;Refocus,2006