@INBOOK {BADU-APRAKU:2001b, title = {Progress in breeding for Striga hermonthica resistant early and extra-early maize varieties}, author = {Badu-Apraku, B. and Fakorede, M. and Ouedraogo, M. and Carsky, R. }, year = {2001}, type = {Impact, challenges and prospects of maize research and development in West and Central Africa: proceedings of a Regional Maize Workshop, 4-7 May, 1999}, pages = {147--162}, publisher = {WECAMAN}, }