International Symposium on Monlinear Design of Concrete Structures,Univ.of Waterloo,1979 International Symposium on Integrity of Offshore Structures International symposium on nondestructive testing of materials and structures M.Z.Cohn, International Symposium on Monlinear Design of Concrete Structures,Univ.of Waterloo,1979 International Symposium on Mechanics of Solids and Structures International Symposium on Nonlinear acoustics International Symposium on shell and Spatial Structures International Symposium on Corrosion of Reinforcement in Concrete Construction International Symposium on Offshore Strucures Nonlinear design of concrete structures