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M. Ramirez
Faculty of Forestry and Environmental Management, University of New Brunswick. P.O. Box 44555 28 Dineen Drive, Fredericton, NB E3B 6C2Fredericton, Canada
J. Loo
Natural Resources Canada, Canadian Forest Service – Atlantic Forestry Centre. P.O. Box 4000, Fredericton, NB, E3B 5P7, Tel. (506) 452-3398, Fax: (506) 452-3525Fredericton, Canada
M. J. Krasowski
Faculty of Forestry and Environmental Management, University of New Brunswick. P.O. Box 44555 28 Dineen Drive, Fredericton, NB E3B 6C2Fredericton, Canada