Solgi, Ahmad Investigating of residual tree damage during ground-based skidding. [electronic resource] - Pakistan journal of biological sciences : PJBS May 2007 - 1755-8 p. digital Publication Type: Journal Article ISSN: 1028-8880 Standard No.: 10.3923/pjbs.2007.1755.1758 doi Subjects--Topical Terms: ForestryIranTrees