Oksman, J.; Leitinger, R.; Hartmann, G.; Hedberg, A.: Afternoon radar aurora and polar cap convectin pattern. In: Proc. Conf. Achievements of the IMS, p. 1291. ESA Publ. Div., Noordwijk (1984)
Hartogh, P.; Hartmann, G. K.; Heimesaat, G.: The use of Chirp-transform-spectrometers for real time Fouriertransform of stochastic signals. Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, Germany (1989)
Puliafito, E.; Puliafito, C.; Hartmann, G. K.; Degenhardt, W.; Hartogh, P.: Bestimmung des Wasserdampf- und Ozongehaltes der Stratosphäre und Mesosphäre aus radiometrischen Messungen. Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, Germany (1989)
Hartmann, G. K.; Hartogh, P.; Loidl, A.: Heterodyne-Spectroscopy in the Millimeter and Submillimeter Domain. Max-Planck-Institut für Aeronomie, Katlenburg-Lindau, Germany (1987)
Hartmann, G.; Schanda, E.; Kunzi, E.; Axford, W. I.: Microwave atmosphere sounder for earth limb observations from space. Project and program description. Dornier-IAP, Univ. of Bern - MPAE Lindau (1981)
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.