Admissible superharmonic functions.- Principe de Harnack a la frontiere et problemes de frontiere de Martin.- Courant superficiel et champ magnetostatique associe.- Quasi-units in mixed lattice structures.- Bases in standard balayage spaces.- Autodual H-cones.- Characterization of perturbations of harmonic spaces.- Standard balayage spaces and standard Markov processes.- Riesz potentials on manifolds.- Prolongement surharmonioue dans un espace harmonique Notion de flux.- Principe complet du maximum et principe complet du maximum relatif.- On boundary Harnack principles and singularities of extremal harmonic functions.- Positive eigen elements for an infinitesimal generator of a diffusion semi-group and their integral representations.- Problemes au bord sur un espace harmonique.- A remark on the singular part of a convolution kernel satisfying the domination principle.- Harmonic functions of bounded mean oscillation and a generalization to vector lattices of continuous functions.- A regular boundary supporting representing measures of bounded functions in a Bauer harmonic space.- On the set of semiregular points.- Connecting of local operators and evolution equations on networks.- The classical Dirichlet problem and its generalizations.- Singularities of locally analytic processes.- Support biharmonique et supports harmoniques associes.- Fine and admissible convergence for the unit ball in ?n.- Problem section.