Authors: Ullmann, H Trofimenko, N

Citation: H. Ullmann et N. Trofimenko, Estimation of effective ionic radii in highly defective perovskite-type oxides from experimental data, J ALLOY COM, 316(1-2), 2001, pp. 153-158

Authors: Ullmann, H Trofimenko, N Tietz, F Stover, D Ahmad-Khanlou, A

Citation: H. Ullmann et al., Correlation between thermal expansion and oxide ion transport in mixed conducting perovskite-type oxides for SOFC cathodes, SOL ST ION, 138(1-2), 2000, pp. 79-90

Authors: Ullmann, H Trofimenko, N Naoumidis, A Stover, D

Citation: H. Ullmann et al., Ionic/electronic mixed conduction relations in perovskite-type oxides by defect structure, J EUR CERAM, 19(6-7), 1999, pp. 791-796

Authors: Trofimenko, N Ullmann, H

Citation: N. Trofimenko et H. Ullmann, Co-doped LSGM: composition-structure-conductivity relations, SOL ST ION, 124(3-4), 1999, pp. 263-270

Authors: Ullmann, H Trofimenko, N

Citation: H. Ullmann et N. Trofimenko, Composition, structure and transport properties of perovskite-type oxides, SOL ST ION, 119(1-4), 1999, pp. 1-8

Authors: Trofimenko, N Ullman, H

Citation: N. Trofimenko et H. Ullman, Transition metal doped lanthanum gallates, SOL ST ION, 118(3-4), 1999, pp. 215-227