Schellnhuber, Hans Joachim Potsdam Institute for Climate Impact Research;
http://www.humansandnature.org/democracy---hans-joachim-schellnhuber-response-61.php (Verlagsversion)
Schellnhuber, H. J. (2013): Expanding the Democracy Universe, (Expanding the Democracy Universe)(Center for Humans and Nature - Questions/Blog), New York : Center for Humans and Nature.
