http://www.reuters.com/article/2015/03/09/germany-power-eu-canete-idUSL5N0WB32T20150309
http://www.reuters.com/article/2015/02/25/germany-power-idUSL5N0VZ51M20150225
http://www.rechargenews.com/wind/1395286/germany-studies-underground-options-to-speed-wind-highways