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[3]
Ultrastructure of minor-vein phloem and assimilate export in summer and winter leaves of the symplasmically loading evergreens Ajuga reptans L., Aucuba japonica Thunb., and Hedera helix L[J] . Gudrun Hoffmann-Thoma,Aart J. E. van Bel,Katrin Ehlers.Planta . 2001 (2)