@ISSUE{ iet:/content/journals/iet-rpg/11/14, title = "Volume 11, Issue 14", journal = "IET Renewable Power Generation", volume = "11", year = "2017", url = "http://digital-library.theiet.org/;jsessionid=149c8l9f1c6j0.x-iet-live-01content/journals/iet-rpg/11/14" }