@misc{iiasa4027,
           title = {Agro-Ecological Land Resources Assessment for Agricultural Development Planning: A Case Study for Kenya. Resources Data Base and Land Productivity: Technical Annex 6: Fuelwood Productivity},
         address = {IIASA, Laxenburg, Austria},
       publisher = {XQ-94-803},
            year = {1994},
             url = {https://pure.iiasa.ac.at/id/eprint/4027/},
          author = {Kassam, A. H. and van Velthuizen, H. T. and Fischer, G. and Shah, M. M.}
}