A Stable Marching Scheme for an Ill-Posed Initial Value Problem -- Stability of Parameters Estimated by the Output Least Square Method -- Analytic and Numerical Methods in the Study of the Inverse Scattering Problem for Acoustic Waves -- A Numerical Method for Solving the Inverse Stefan Problem in two Space Variables -- On a Constrained Fourier Extrapolation Method for Numerical Deconvolution -- On the Convergence of Regularization Methods for Ill-Posed Linear Operator Equations -- Comments on Morozovโ{128}{153}s Discrepancy Principle -- Reconstruction of a Free Boundary -- The Finite Element Method for a Class of Improperly Posed Integral Equations -- Maxwellโ{128}{153}s Equations with Incident Waves as a Field Source -- The Identification of Kinetical Parameters in Medical Receptor Analysis -- Regularizing the Cauchy Problem for the Heat Equation by Sign Restrictions -- Numerical Solution of Fujitaโ{128}{153}s Equation -- On the Order of Regularization Methods -- Free Boundary Problem for a Non-Linear System of Parabolic Equations, Including One with Reversed Time -- Regularisierungsverfahren fรผr Gleichungen Erster Art mit Positiv Definiten Operatoren -- ร{156}ber Mathematische Methoden der Beobachtungsverarbeitung