About: http://webisa.webdatacommons.org/229746508

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Abstract Because of the serious problems related to an energy supply based mainly on fossil and nuclear fuels, the development of renewable energy sources is urgently needed.
http://www.w3.org/ns/prov#wasQuotedFrom	mdpi.com