1. Root and tuber systems agronomy, International Institute of Tropical Agriculture, Kinshasa, DR Congo
2. National cassava program, Institut National Pour l’etude et la Recherches Agronomiques, Mvuazi, DR Congo
3. Faculty of agronomy, University of Kinshasa, Kinshasa, DR Congo
4. Department of agronomy, Institut National Pour l’Etude Et La Recherches Agronomiques, Kiyaka, DR Congo
5. Department of cassava breeding, International Institute of Tropical Agriculture, Kisangani, DR Congo