A guide to H? -control theory -- Nonlinear interpolation theory in H? -- Super-optimal Hankel norm approximations -- Hankel norm approximation for infinite dimensional systems and Wiener-Hopf factorization -- Imaginary-axis zeros in multivariable H? -optimal control -- A polynomial approach to H? -optimization of control systems -- Bounds on the achievable accuracy in model reduction -- Recent and new results in rational L2 -approximation -- Design examples using ?-synthesis: Space shuttle lateral axis FCS during reentry -- A necessary and sufficient condition for robustness of stability under known additive perturbation -- Recursive methods for control design based on approximate models -- Performance-robust design via a multi-criteria/multi-model approach - a flight control case study -- Unfalsified modelling in dynamical systems -- Approximative inversion of positive matrices with applications to modelling -- The periodic prediction problem for cyclostationary processes - an introduction -- System identification: design variables and the design objective -- Approximate modelling of deterministic systems -- Some new results on and applications of an algorithm of Agashe -- An application of H? -design and some computational improvements -- Hankel and Toeplitz operators in linear quadratic and H?-designs -- H?-optimal control, LQG polynomial systems techniques and numerical solution procedures -- Optimal H? -interpolation: a new approach -- Some Min-Max optimization problems in infinite-dimensional control systems -- Control system design to minimize maximum errors -- Implications of a characterization result on strong and reliable decentralized control -- Sensitivity minimization as a Nevanlinna-Pick interpolation problem -- The spectral factorization problem for SISO distributed systems -- 7. List of Participants.