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Flückiger, Erwin; Bütikofer, Rolf (2007). Neutron monitor data for Jungfraujoch and Bern during the ground-level solar cosmic ray event on 13 December 2006. In: Activity Report 2006 (pp. 117-120). Bern: High Altitude Research Stations Jungfraujoch and Gornergrat
Sartorius, Hartmut; Schlosser, Clemens; Schmid, Sabine; Loosli, Heinz Hugo (2003). 85Kr activity determination in tropospheric air. In: Activity Report 2003 (pp. 85-86). Bern: High Altitude Research Stations Jungfraujoch and Gornergrat