Haussmann, B I G and Obilana, A B and Ayiecho, P O and Blum, A and Schipprack, W and Geiger, H H (2000) Yield and yield stability of four population types of grain sorghum in a semi-arid area of Kenya. Crop Science, 40 (2). pp. 319-329. ISSN 1435-0653