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Leyser, T. B.; Thidé, B.; Derblom, H.; Hedberg, Å.; Lundborg, B.; Stubbe, P.; Kopka, H.: Stimulated Electromagnetic Emission near Electron Cyclotron Harmonics in the Ionosphere. Physical Review Letters 63, S. 1145 - 1147 (1989)

Lieu, R.; Axford, W. I.; Quenby, J. J.: Synchrotron radiation treated by the Weizsäcker-Williams method of virtual quanta. Astronomy and Astrophysics 208, S. 351 - 356 (1989)

Ma, R.-P.; Rüster, R.: Results of Mesospheric Measurements with SOUSY-VHF-Radar. Research of Space Physics 12 4 (1,2), S. 76 - 83 (1989)

Marsch, E.; Pilipp, W. G.; Thieme, K. M.; Rosenbauer, H.: Cooling of solar wind electrons inside 0.3 AU. Journal Geophysical Research 94, S. 6893 - 6898 (1989)

Marsch, E.; Tu, C.-Y.: Dynamics of correlation functions with Elsässer variables for inhomogeneous MHD turbulence. Journal of Plasma Physics 41, S. 479 - 491 (1989)

Natorf, L.; Wernik, A. W.; Wodnicka, E. B.; Schlegel, K.: Detecting travelling ionospheric disturbances in incoherent scatter data using the Maximum Entropy Method. Journal of Atmospheric and Terrestrial Physics 51, S. 389 - 400 (1989)

Neugebauer, M.; Goldstein, B. E.; Balsiger, H.; Neubauer, F. M.; Schwenn, R.; Shelley, E. G.: The Density of Cometary Protons Upstream of comet Halley's Bow Shock. Journal Geophysical Research 94, S. 1261 - 1269 (1989)

Opgenoorth, H. J.; Bromage, B.; Fontaine, D.; La Hoz, C.; Huuskonen, A.; Kohl, H.; Lovhaug, U.-P.; Wannberg, G.; Gustafsson, G.; Murphre, J. S. et al.; Eliasson, L.; Marklund, G.; Potemra, T. A.; Kirkowood, S.; Nielsen, E.; Wahlund, J. E.: Coordinated observations with EISCAT and the Viking satellite: The decay of a westward travelling surge. Annales Geophysicae 7, S. 479 - 500 (1989)

Reid, I. M.; Czechowsky, P.; Rüster, R.; Schmidt, G.: First VHF Radar Measurements of Mesopause Summer Echoes at Mid-Latitudes. Geophysical Research Letters 16, S. 135 - 138 (1989)

Rietveld, M. T.; Stubbe, P.; Kopka, H.: On the frequency dependence of ELF/VLF waves produced by modulated ionospheric heating. Radio Science 24, S. 270 - 278 (1989)

Rosenbauer, H.; Shutte, N.; Apathy, I.; Galeev, A.; Gringauz, K.; Grünwaldt, H.; Hemmerich, P.; Jockers, K.; Kiraly, P.; Kotova, G. et al.; Livi, S.; Marsch, E.; Richter, A.; Riedler, E.; Remizov, T.; Schwenn, R.; Schwingenschuh, K.; Steller, M.; Szegö, K.; Verigin, M.; Witte, M.: Ions of Martian origin and plasma sheet in the Martian magnetosphere: Initial results of the TAUS experiment. Nature 341, S. 612 - 614 (1989)

Röttger, J.: Mean, tidal, and fluctuating winds in the middle atmosphere and lower thermosphere observed during MAP/WINE in northern Scandinavia. Handbook for MAP 27, S. 251 - 270 (1989)

Röttger, J.: The interpretation of MST radar echoes: The present knowledge of the scattering/reflection and the irregularity generation mechanisms. Handbook for MAP 28, S. 68 - 82 (1989)

Röttger, J.: The instrumental principles of MST radars and incoherent scatter radars and the configuration of radar system hardware. Handbook for MAP 30, S. 54 - 113 (1989)

Röttger, J.; Hoppe, U.-P.; Hall, C.: EISCAT observations during MAC/SINE and MAC/EPSILON. Handbook for MAP 27, S. 370 - 376 (1989)

Röttger, J.; La Hoz, C.: Fine-structure of Doppler spectra of polar mesosphere summer echoes (PMSE) observed with the EISCAT 224-MHz radar. Handbook for MAP 28, S. 107 - 114 (1989)

Röttger, J.; La Hoz, C.; Franke, S. J.; Liu, C. H.: Gravity wave steepening and tilting detected in high resolution Doppler spectra of polar mesosphere summer echoes (PMSE) observed with the EISCAT 224 MHz radar. Handbook for MAP 28, S. 267 - 277 (1989)

Röttger, J.; Liu, C. H.; Fu, I.-J.; Pan, C. J.: Spatial interferometer measurements with the Chung-Li VHF radar. Handbook for MAP 28, S. 192 - 202 (1989)

Röttger, J.; Rietveld, M. T.; La Hoz, C.; Hall, T.; Kelley, M. C.; Swartz, W. E.: Polar mesosphere summer echoes observed with the EISCAT 933-MHz radar and the CUPRI 46.9-MHz radar. Handbook for MAP 28, S. 168 - 178 (1989)