NATO Advanced Study Institute on Fuzzy Sets Theory and Applications NATO Advanced Study Institute on Integrated Optics Physics and Applications NATO Advanced Study Institute on Polynomial and Spline Approximations NATO Advanced Study Institute on Catalyst Deactivation NATO Advanced Study Institute on Fiber and Integrated Optics NATO Advanced Study Institute on Polymer Colloids NATO Advanced Study Institute on the Scientific Basis of Filtration NATO Advanced Study Institute on Molten Salt Chemistry NATO Advanced Study Institute on Heat Pump Fundamentals NATO Advanced Study Institute on Information Science