International Symposium"Gasdynamic and Chemical Lasers",Koln,1976 SID international symposium digest of technical papers International Symposium on Ocidar Juners International symposium on mining research Gasdynamic and chemical lasers International Symposium on Geology and Geochemistry of Manganese International symposium on Humidity and Moisture International Symposium on Dynamic Soil-Structure Interaction International Symposium on Aeroelasticity and Structural Dynamics International Symposium on Multiparticle Dynamics