(Wageningen)International Symposium on Insect-Plant Relationships International Symposium on Insect-Plant Relationships (Wageningen)International Symposium on Reproductive Physiology of Fish (Beijing)International Symposium on Genetic Manipulation in Crops (Gottingen)International Symposium on Rarefied Gas Dynamics(9th) Proceedings of the 5th International Symposium on Insect-Plant Relationships,Wageningen,Mar.1-4,1982 F.Weinberg international symposium on solidification processing Proceedings of the international symposium on isotope separation