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Rothermel H, Käufl HU, Yu Y. A heterodyne spectrometer for astronomical measurements at 10 micrometers. A&A. 1983;126:387–92.
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Kaeufl HU, Rothermel H, Drapatz S. Indication for H2O in the upper atmosphere of Mars. A&A. 1984;141:430–2.
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Rothermel H, Käufl HU, Schrey U, Drapatz S. Thermal structure of the Martian mesosphere. A&A. 1988;196:296–300.
Keywords: atmospheric temperature, carbon dioxide, infrared spectroscopy, mars atmosphere, mesosphere, emission spectra, line spectra, spatial resolution, mars, atmosphere, mesosphere, structure, thermal properties, spectra, spectroscopy, earth-based observations, temperature, patterns, infrared, polar regions, wavelengths, equipment, procedure, carbon dioxide, emissions
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