H. Koopmans

Band gap, excitons, and Coulomb interaction in solid C60.

George A. Sawatzky, R. W. Lof, G. Sawatzky, 1992 .

Electrocatalytic phenomena in gas phase reactions in solid electrolyte electrochemical cells

A. Burggraaf, H. Koopmans, P. Gellings, 1988 .

Powder neutron diffraction study of the perovskites CaTiO3 and CaZrO3

H. Koopmans, P. Gellings, G. V. D. Velde, 1983 .

The Interpretation of Broadened Gd3+ EPR Spectra of Polycrystalline Ceramics

H. Koopmans, P. Gellings, M. Perik, 1983 .

The Simulation and Interpretation of the EPR Powder Spectra of Gd3+-Doped LaAlO3

H. Koopmans, P. Gellings, M. Perik, 1984 .

Electrical and catalytic properties of some oxides with the fluorite or pyrochlore structure. CO oxidation on some compounds derived from Gd2Zr2O7

A. Burggraaf, B. C. Lippens, H. Koopmans, 1987 .