The economics of managing crop diversity on-farm: Case studies from the genetic resources policy initiative
Plant genetic resources and food security: Stakeholder perspectives on the international treaty on plant genetic resources for food and agriculture
Workshop on Conservation of Plant Genetic Resources (1990, Bonn, Germany). Genetic diversity, and crop strategies for roots and tubers
Vivero Internacional de Rendimiento y Adaptación de Frijol (International Bean Yield and Adaptation Nursery) IBYAN 1991
El enfoque agroecológico una estrategia en la búsqueda de la sostenibilidad de los sistemas de producción