O. J. Velle

A Cost Effective Technique for Production Well Testing

G. Saether, G. Nerby, O. J. Velle, 1995 .

The oxidative dehydrogenation of ethane by perovskite type catalysts containing oxides of strontium, cerium and ytterbium☆

O. J. Velle, Klaus‐Joachim Jens, A. Andersen, 1990 .

The electrode system ‖ZrO2: 8Y2O3 investigated by impedence spectroscopy

O. J. Velle, T. Norby, P. Kofstad, 1991 .

Impedance spectroscopy studies of electrode-electrolyte systems

O. J. Velle, T. Norby, 1992 .