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References

Keckhut, P., A. Hauchecorne, and M.L. Chanin, Mid-latitude long-term variability of the middle atmosphere: trends, cyclic and episodic changes, J. Geophys. Res., 100, 18887- 18897, 1995.

Keckhut ,P., M.E. Gelman, J.D. Wild, F. Tissot, A.J. Miller, A. Hauchecorne, M.L. Chanin, E.F. Fishbein, J. Gille, J.M. Russell III, and F.W. Taylor, Semi-diurnal and diurnal temperature tides (30-55 km): climatology and effect on UARS-lidar data comparisons, J. Geophys. Res., special issue on UARS Data Validation, 101, 10299-10310, 1996 .

Keckhut, P., F.J. Schmidlin, A. Hauchecorne, and M.L. Chanin, Trend estimates from US rocketsondes at low latitude stations (8 S-34 N), taking into account instrumental changes and natural variability, J. Atmos. Sol. Terr. Phys., 51, 447-459, 1998.

Keckhut P., and K. Kodera, Long-term changes of the upper stratosphere as seen by rocketsondes at Ryori (39°N, 141°E), Annales Geophysicae,, 17,1210-1217, 1999.

Ramaswamy V., M.L. Chanin, J. Angell, J. Barnett, D. Gaffen, M. Gelman, P. Keckhut, Y. Kolshelkov, K. Labitzke, J-J. R. Lin, A. O’Neill, J. Nash, W. Randel, R. Rood, K. Shine, M. Shiotani, and R. Swinbank,Stratospheric temperature changes: observations and model simulations, Review of Geophysics, 2001 (on press).

Keckhut P., Wild J., Gelman M., Miller A.J., and Hauchecorne A., Investigations on long-term temperature changes in the upper stratosphere using lidar data and NCEP analyses, J. Geophys. Res., 2000.