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Defoliation levels of oriental spruce by Ips typographus (L.) in relation to elevation and exposure
(Triveni Enterprises, 2008)
Astudy concerning the effects of elevation and exposure of the spruce forests on defoliation levels of oriental spruce (Picea orientalis (L.) Link.) by Ips typographus L. wascarried outduring 2005 and 2006 in Artvin-Hatila ...