Icy particles in the summer mesopause region: Three-dimensional modeling of their environment and two-dimensional modeling of their transport von Berger, U., von Zahn, U.

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Persistent ice cloud in the midsummer upper mesosphere at high latitudes: Three-dimensional modeling and cloud interactions with ambient water vapor von von Zahn, U., Berger, U.

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Helium in Jupiter's atmosphere: Results from the Galileo probe Helium Interferometer Experiment von Zahn, U., Hunten, D. M., Lehmacher, G.

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Regulation of Choline Acetyltransferase Expression by 17β-Oestradiol in NSC-34 Cells and in the Spinal Cord von Johann, S., Dahm, M., Kipp, M., Zahn, U., Beyer, C.

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Diurnal and annual variations of meteor rates at the arctic circle von Singer, W., von Zahn, U., Weiß, J.

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Size distributions of NLC particles as determined from 3-color observations of NLC by ground-based lidar von von Cossart, G., Fiedler, J., von Zahn, U.

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The two-level structure of the mesopause: A model study von Berger, U., Zahn, U.

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Concept of a two-level mesopause: Support through new lidar observations von She, C. Y., Zahn, U.

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Simultaneous and common-volume observations of noctilucent clouds and polar mesosphere summer echoes von von Zahn, U., Bremer, J.

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Atmospheric Ca and Ca+ layers: Midlatitude observations and modeling von Gerding, M., Alpers, M., Zahn, U., Rollason, R. J., Plane, J. M. C.

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Noctilucent clouds and the mesospheric water vapour: the past decade von von Zahn, U., Baumgarten, G., Berger, U., Fiedler, J., Hartogh, P.

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The ALOMAR Rayleigh/Mie/Raman lidar : objectives, configuration, and performance von VON ZAHN, U, VON COSSART, G, FIEDLER, J, FRICKE, K. H, NELKE, G, BAUMGARTEN, G, REES, D, HAUCHECORNE, A, ADOLFSEN, K

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NLC particle properties from a five-color lidar observation at 54°N von Alpers, M., Gerding, M., Höffner, J., Zahn, U.

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The mesopause altitude: Only two distinctive levels worldwide? von von Zahn, U., Höffner, J., Eska, V., Alpers, M.

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Tidal variations of noctilucent clouds measured at 69°N latitude by groundbased lidar von von Zahn, U., von Cossart, G., Fiedler, J., Rees, D.

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The Helium Mass Fraction in Jupiter's Atmosphere von von Zahn, U., Hunten, D. M.

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Aircraft lidar observations of an enhanced type Ia polar stratospheric clouds during APE-POLECAT von Tsias, A., Wirth, M., Carslaw, K. S., Biele, J., Mehrtens, H., Reichardt, J., Wedekind, C., Weiß, V., Renger, W., Neuber, R., Zahn, U., Stein, B., Santacesaria, V., Stefanutti, L., Fierli, F., Bacmeister, J., Peter, T.

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The potassium density and temperature structure in the mesopause region (80-105 km) at a low latitude (28°N) von Fricke-Begemann, C., Höffner, J., von Zahn, U.

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Iron, calcium, and potassium atom densities in the trails of Leonids and other meteors: Strong evidence for differential ablation von von ZAHN, U., GERDING, M., HÖFFNER, J., McNEIL, W. J., MURAD, Edmond

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Simultaneous K and Ca lidar observations during a meteor shower on March 6-7, 1997, at Kühlungsborn, Germany von Gerding, M., Alpers, M., Höffner, J., Zahn, U.

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