Brown, Tom; Schierhorn, Peter-Philipp; Tröster, Eckehard; Ackermann, Thomas: 'Optimising the European transmission system for 77% renewable electricity by 2030', IET Renewable Power Generation, 2016, 10, (1), p. 3-9, DOI: 10.1049/iet-rpg.2015.0135
IET Digital Library, https://digital-library.theiet.org/;jsessionid=10pac400ieaig.x-iet-live-01content/journals/10.1049/iet-rpg.2015.0135