http://www.pickar.caltech.edu/e103/Final%20Exams/Space%20Based%20Solar%20Power.pdf
http://www.space.com/14643-air-force-space-nuclear-reactors-power-beaming.html
http://en.wikipedia.org/wiki/Space-based_solar_power
http://www.thespacereview.com/article/1359/1
http://www.energybulletin.net/stories/2012-03-21/space-based-solar-power