Johnsen Sigfus | University of Copenhagen, Department of Geophysics
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概要
University of Copenhagen, Department of Geophysics | 論文
- Sticking deep ice core drills: Why and how to recover
- Attenuation of drill cables
- The UCPH borehole logger
- Hole liquids and gaskets for the ISTUK deep ice core drill
- The new improved version of the ISTUK ice core drill