Physico-chemical investigations on Co-Mn-oxide spinels / Anna Dorothea Dagmar BroemmeLocal excitations and magnetism in late transition metal oxides / Cornelis de GraafX-ray diffraction and X-ray absorption of strained CoO and MnO thin films / door Szilard Istvan CsiszarOxygen evolution on La0.5Ba0.5CoO3 electrodes / door Alexander Gerardus Cornelis KobussenInvestigations on the properties of La1-x SrxCoO3-y electrodes / Frederik Roelof van Buren