Ovaska, Jari Changes in Leaf Gas Exchange Properties of Cloned Betula pendula Saplings after Partial Defoliation / Jari Ovaska, Mari Walls, Pia Mutikainen. -- 1.vyd.

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I. Walls, Mari
II. Mutikainen, Pia
III. Journal of Experimental Botany. -- Vol.43, No.255. (1992), s. 1301-1307. tab.
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