TY - THES A1 - Wohltmann, Ingo T1 - Ozone depletion, chlorine activation and water vapor observed in Spitsbergen Y1 - 2002 DO - 10.23689/fidgeo-389 PB - Univ. Bremen UR - http://hdl.handle.net/11858/00-1735-0000-0001-3215-8 ER -