1. Independent Researcher/Evaluator, Sarasota, FL, USA
2. International Potato Center (CIP), Louvain-la-Neuve, Belgium
3. Department of International Cooperation, Research Institute of Organic Agriculture (FiBL), Frick, Switzerland
4. CIP, Kampala, Uganda
5. International Potato Center (CIP), Lima, Peru
6. Pontificia Universidad Católica del Peru (PUCP), Lima, Peru
7. CGIAR Research Program on Roots, Tubers and Bananas, CIP, Lima, Peru