Development of instruments for the investigation of extraterrestrial ice layers (2007)
Kaufmann, Erika, Kömle, N.I., Engelhardt, Marc, Romstedt, J.
For the investigation of terrestrial ice layers different kinds of penetration devices exist. Examples are drills, hammering devices (moles) and melting probes. With the development of planetary...
Frankfurt, Naturwiss. Diss., 1941 (Nicht f. d. Austausch).