Journal article (2010) - S Tekleab (author), Stefan Uhlenbrook (author), S Uhlenbrook (author), S. Uhlenbrook (author), Y. Mohamed (author), Y.A. Abbas Mohamedali (author), Yasir Abbas Mohamedali (author), Y. Abbas Mohamedali (author), Yasir A. Abbas Mohamedali (author), Yasir A. Mohamed (author), Y.A. Mohamed (author), Yasir Mohamed (author), Hubert H.G. Savenije (author), HHG Savenije (author), Hubert H G Savenije (author), Huub Savenije (author), Hubert Savenije (author), H. H. G. Savenije (author), H. Savenije (author), S Ayalew (author), M. Temesgen (author), J Wenninger (author)