Anthropogenic Drivers of Ecosystem Change: an Overview oleh Gerald C. Nelson, Elena Bennett, Asmeret A. Berhe, Kenneth Cassman, Ruth DeFries, Thomas Dietz, Achim Dobermann, Andrew Dobson, Anthony Janetos, Marc Levy, Diana Marco, Nebojsa Nakicenovic, Brian O'Neill, Richard Norgaard, Gerhard Petschel-Held, Dennis Ojima, Prabhu Pingali, Robert Watson, Monika Zurek