Possible origins of common bean (Phaseolus vulgaris L.) cultivated in Spain in relation to the wild genetic pools of the America [CD-ROM] - Ocampo Nahar, César H.; Martin, J,P,; Ortíz, J.M.; Sánchez Yélamo, María Dolores; Toro Chica, Orlando; Debouck, Daniel G. (2002)