Linking intra-tree-ring wood density variations and tracheid anatomical characteristics in Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) Cyrille B. K. Rathgeber, Valérie Decoux and Jean-Michel LebanAnn. For. Sci., 63 7 (2006) 699-706DOI: https://doi.org/10.1051/forest:2006050