Wengenmayr, Roland Renewable Energy : sustainable concepts for the energy change / by Roland Wengenmayr. - 2nd ed. - Weinheim : Wiley-VCH, 2013. - vi, 164 p. : col. il Include Index ISBN: 9783527411870 Subjects--Topical Terms: Renewable energy sources. Dewey Class. No.: 621.042 / WEN/R