By Nevanlinna Heikki   in Solar Physics

ISSN:0038-0938|224|1-2|395-405

Springer Publishing Company ‎(2004)‎

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ISSN:0531-7479|36|3|82-85

Edp Sciences‎(2010)‎

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ISSN:2115-7251|4|issue|A11-A11

Edp Sciences‎(2014)‎

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