1
Geophysical research letters  

ZB; Vol. 2. 1976, Nr. 7 - 12
ZB; Vol. 3. 1976 - Vol. 29. 2002
ZB; Vol. 30. 2003, Nr. 1 - 22, 24
ZB; Vol. 31. 2004, Nr. 1 - 15
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