Composition, distribution and supposed origin of mineral inclusions in sessile oak wood – consequences for microdensitometrical analysis Dries Vansteenkiste, Joris Van Acker, Marc Stevens, Didier Le Thiec and Gérard NepveuAnn. For. Sci., 64 1 (2007) 11-19DOI: https://doi.org/10.1051/forest:2006083