Aktulga, E., Çil, C.Z., Aktaş, G., “Phase Shift Analysis of Modulated Photocurrent a New Approach to Determining the Energy Scale”, Applied Physics A-Materials Science & Processing, 48, 6, 517-520, 1989. Dil Türkçe
Özgüç, A., Ataç, T., “Periodic Behavior of Solar Flare Index During Solar Cycle-20 and Cycle-21”, Solar Physics, 123, 2, 357-365, 1989. Dil Türkçe
Brown, D.B., Hemami, H., Istefanopulos, Y., “Online Exploration of an Unknown Surface by a Robotic Probe”, Journal of Robotic Systems, 6, 5, 521-543, 1989. Dil Türkçe
Ataç, T., “On the Short Term Variations of Solar Activity During Solar Cycle-21”, Earth Moon and Planets, 47, 2, 165-170, 1989. Dil Türkçe
Pym, J., Ülger, A., “On the Arens Regularity of Inductive Limit Algebras and Related Matters”, Quarterly Journal of Mathematics, 40, 157, 101-109, 1989. Dil Türkçe
Karasu, I., Özekici, S., “Nbue and Nwue Properties of Increasing Markov Processes”, Journal of Applied Probability, 26, 4, 827-834, 1989. Dil Türkçe
Arık, M., Neyzi, F., Nutku, Y., Olver, P.J., Verosky, J.M., “Multi Hamiltonian Structure of the Born Infeld Equation”, Journal of Mathematical Physics, 30, 6, 1338-1344, 1989. Dil Türkçe
Fontaine, F., Morland, C., Noel, C., Monnerie, L., Erman, B., “Mechanical Properties of Dry and Swollen CIS-1,4-Polyisoprene Networks in Simple Tension Experiment and Comparison with Theory”, Macromolecules, 22, 8, 3348-3352, 1989. Dil Türkçe
Denkel, A., “Matter and Objecthood”, Dialogue-Canadian Philosophical Review, 28, 1, 3-16, 1989 Dil Türkçe
Altaş, L., “Major Flare Effects on the Intensity of the Green Corona and Geomagnetic Activity”, Earth Moon and Planets, 46, 2, 127-134, 1989. Dil Türkçe