TY - RPRT A1 - Fischer, G. A1 - van Velthuizen, H.T. A1 - Shah, M.M. A1 - Nachtergaele, F.O. T1 - Global agro-ecological assessment for agriculture in the 21st century: Methodology and results Y1 - 2002 PB - IIASA CY - Laxenburg ER -