(Austin)International Symposium on Nonlinear Acoustics (paris)International Symposium on non Linear Acoustics Interational Symposium on Nonlinear Acoustics International Symposium on Non Linear Acoustics International symposium on nonlinear mechanics International symposium on confined concrete / (Lausanne)International symposium on separation Methods International Symposium on Snergetics International Symposium on Synergetics (California)International symposium on fault-tolerant computing