Differences in branch characteristics of Scots pine (Pinus sylvestris L.) genetic entries grown at different spacingJaume Gort, Ane Zubizarreta-Gerendiain, Heli Peltola, Antti Kilpeläinen, Pertti Pulkkinen, Raimo Jaatinen and Seppo KellomäkiAnn. For. Sci., 67 7 (2010) 705DOI: https://doi.org/10.1051/forest/2010030