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Tuncer, M.K., Oshiman, N., Barış, Ş., Kamacı, Z., Kaya, M.A., Işıkara, A.M., Honkura, Y., “Further Evidence for Anomalous Magnetic Structure Along the Active Fault in Western Turkey”, Journal of Geomagnetism And Geoelectricity, 43, 11, 937-950, 1991. Dil Türkçe
Özgüç, A., Yeşilyaprak, H., Düzgelen, A., “Distribution of Solar Surges”, Astronomy and Astrophysics, 241, 1, 209-211, 1991. Dil Türkçe
Oshiman, N., Tuncer, M.K., Honkura, Y., Barış, Ş., Yazıcı, O., Işıkara, A.M., “A Strategy of Tectonomagnetic Observation for Monitoring Possible Precursors to Earthquakes in the Western part of the North Anatolian Fault Zone, Turkey”, Tectonophysics, 193, 4, 359-368, 1991. Dil Türkçe
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Dizer, M., “Periodicity and Distribution of the Sudden Disappearances of Solar Prominences in the Chromosphere”, Astrophysics and Space Science, 173, 1, 127-144, 1990. Dil Türkçe
Özgüç, A., Sağlamsaatçi, M., “Solar Rotation Rate from Stable Sunspot Tracings”, Astrophysics and Space Science, 153, 2, 345-349, 1989. Dil Türkçe
Aslan, Z., Aydın, C., Tunca, Z., Demircan, O., Derman, E., Gölbaşı, O., Marsoğlu, A., “Site Testing for an Optical Observatory in Turkey”, Astronomy and Astrophysics, 208, 1-2, 385-391, 1989. Dil Türkçe
Ataç, T., “Relation of the Fluctuations of Some of the Solar Activity Indexes”, Astrophysics and Space Science, 153, 1, 173-176, 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