Distribution and Phenology |
Bell;
Clawson & McCracken (2002);
Ahrné
(2002); Liman (2002);
Dalin; Björkman &
Eklund, 2003-2006.
SE Swedish
University of Agricultural Sciences (SLU) Björkman et al.
Short-Rotation Woody Crop Operations Working Group State University of New York