著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Olsson, Katarina and Laboratory of Remote Sensing, Dept. of Physical Geography, University of Lund and Institute of Environmental Studies, University of Khartoum","Fuelwood demand and supply in the UMM Ruwaba/Er Rahad Region in N. Kordofan, the Sudan : a study based on field data and Landsat MSS information",,"Laboratory of Remote Sensing, Dept. of Physical Geography, University of Lund,Institute of Environmental Studies, University of Khartoum",1985,Rapporter och notiser,,,,https://cir.nii.ac.jp/crid/1130282273220076032