The use of electrical resistance of cambium and phloem as a measure of tree vigor
Lindberg, M ; Johansson, M. (Sveriges Lantbruksuniv., Uppsala (Sweden). Inst. foer Vaext- och Skogsskydd)
Scandinavian journal of forest research, 1989, Vol.4 (2), p.175-185 [Periódico revisado por pares]Basingstoke: Taylor & Francis Group
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