Conserving and using cassava, sweetpotato and yam germplasm in sub-Saharan Africa: Summary proceedings of a regional workshop, 11-13 November 1997, Nairobi, Kenya
Mycosphaerella leaf spot diseases of bananas: present status and outlook: Proceedings of the 2nd international workshop on Mycosphaerella leaf spot diseases held in San José, Costa Rica, 20-23 may 2002
Host specificity and daytime activity of parasitoids of the Latin American cassava mealybug, Phenacoccus herreni (Sternorrhyncha: Pseudococcidae)