@INBOOK {KLING:1997d, title = {Sources of Resistance to Striga in tropical maize and teosinte}, author = {Kling, J. and Berner, D. K. and Ibikunle, O. }, year = {1997}, type = {Agronomy Abstracts}, pages = {71}, publisher = {American Society of Agronomy}, address = {Madison, WI, USA}, }