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 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.