Rastogi, P. K.; Röttger, J.: Radar detection of tropopause by coherent reflections at very high frequencies. In: 19th Conference on Radar Meteorology, pp. 616 - 623. Amer. Meteor. Soc., Boston, Mass./USA (1980)
Röttger, J.; Czechowsky, P.: Tropospheric and stratospheric wind measurements with the spaced antenna drifts technique and the Doppler beam swinging technique using a VHF radar, Prepr. 19. Am. Met. Soc., pp. 577 - 584 (1980)
Schödel, J. P.; Klostermeyer, J.; Röttger, J.: Atmosphereic gravity wave observations after the solar eclipse. In: Solar Eclipse 1973, pp. 92 - 93. Bulletin, Washington, D. C. (1974)
The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior.
The Uranian magnetic field is more expansive than previously thought, according to newly analyzed data from Voyager 2, making it easier to search for moons with oceans.