Distributed Parameter Systems : Proceedings of the 2nd International Conference Vorau Austria 1984 On a variational approach to some parameter estimation problems Fixed point methods in nonlinear control An initial value control problem for burgers equation Optimal periodic control of retarded Lienard equations On the identification of a spatially varying coefficient appearing in a parabolic partial differential equation Disturbance decoupling for distributed systems by boundary control Riccati equation with unbounded coefficients Some problems in shape optimal design for communications satellites Identification and control for distributed parameters in porous media flow The maximum principle for nonlinear nonconvex systems in infinite dimensional spaces On the optimal control of non well posed systems with boundary control Legendre tau approximation for functional differential equations part III: Eigenvalue approximations and uniform stability On solving time minimal control problems Approximations of Riccati equations corresponding to hyperbolic boundary control problems Parameter identification problems for interconnected distributed parameter systems and applications to a biotechnological plant Tandem connection of systems with delays Modelling and parameter estimation for distributed vibratory systems Algorithmic approaches to sets of good answers in inverse problems An abstract framework for infinite dimensional systems with unbounded control and observation Coefficient identification for a parabolic problem On strong solution uniqueness stability and comparison theorems for a stochastic system with poisson jumps Differential stability of control constrained optimal control problems for distributed parameter systems Improvement of stability properties of hyperbolic damped wave equation via boundary feedback Maximum principle of distributed parameter systems with time lags Optimality conditions and duality for continuous time programming without differentiability Shape stabilization of flexible structure.