NELSON, J. (2001, Januar 1). Assessment of harvest blocks generated from operational polygons and forest-cover polygons in tactical and strategic planning. 31(4). Ottawa, ON: National Research Council of Canada, 2001. Abgerufen von http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=1083680

NELSON, John, 2001. Assessment of harvest blocks generated from operational polygons and forest-cover polygons in tactical and strategic planning. In: [online]. Ottawa, ON: National Research Council of Canada, 2001. 1 Januar 2001. Available from: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=1083680

NELSON, J. Assessment of harvest blocks generated from operational polygons and forest-cover polygons in tactical and strategic planning. Nr. 4, Ottawa, ON: National Research Council of Canada, 2001., 2001, http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=1083680.

NELSON, J. (2001), „Assessment of harvest blocks generated from operational polygons and forest-cover polygons in tactical and strategic planning“, in , Bd. 31, Ottawa, ON: National Research Council of Canada, 2001., verfügbar unter: http://pascal-francis.inist.fr/vibad ndex.php?action=search&terms=1083680.