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Document type:
Journal Article 
Author(s):
Ahas, R.; Aasa, A.; Menzel, Annette; Fedotova, V. G.; Scheifinger, H. 
Title:
Changes in European spring phenology 
Journal title:
International Journal of Climatology 
Year:
2002 
Journal volume:
22 
Journal issue:
14 
Pages contribution:
1727–1738