Prospects for new sources of energy: A report on the United Nations Conference on New and Renewable Sources of Energy, Nairobi, Kenya, 10–21 August 1981
URI
http://link.springer.com/article/10.1007%2FBF00205944?LI=truehttp://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/42296