Nato Advanced Study Institute on Electronic Structure and Reactivity of Metal Surfaces Electronic structure and reactivity of metal surfaces NATO Advanced Study Institute on Nondestructive Evaluation of Semiconductor Materials and Devices NATO Advanced Study Institute on Computer Communication Networks NATO Advanced Study Institute on the Scientific Basis of Filtration Nato Advanced Study Institute on Kinetics of Ion-Molecule Reactions Nato Advanced Study Institute on Nuclear Magnetic Resonance in Solids NATO Advanced Study Institute on Computer Architectures for Spatially Distributed Data NATO Advanced Study Institute on Mass Transfer and Kinetics of Ion Exchange Nato Advanced Studies Institute on Theoretical Nuclear Physics