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Frontiers of Forestry in China > 2009 > 4 > 1 > 14-20
Physica D: Nonlinear Phenomena > 2003 > 180 > 1-2 > 92-107
Frontiers of Forestry in China > 2009 > 4 > 1 > 14-20
Physica D: Nonlinear Phenomena > 2003 > 180 > 1-2 > 92-107