Preface -- Gottfried Anger: Direct and inverse problems in potential theory -- Viorel Barbu: Regularity results for sane differential equations associated with maximal monotone operators in Hilbert spaces -- Haim Brezis: Classes dโ{128}{153}interpolation associรฉes ร  un opรฉrateur monotone et applications -- Siegfried Dnรผmmel: On inverse problems for k-dimensional potentials -- Jozef Ka?ur: Application of Rotheโ{128}{153}s method to nonlinear parabolic boundary value problems -- Josef Krรกl: Potentials and removability of singularities -- Vladimir Lovicar: Theorem of Frรฉchet and asymptotically almost periodid solutions of sane nonlinear equations of hyperbolic type -- Jaroslav Lukeลก: A new type of generalized solution of the Dirichlet problem for the heat equation -- Ji?รญ Veselรฝ: Some remarks on Dirichlet problem -- Ivo Vrko?: Diffusion processes and their connection to partial differential equations of parabolic type