Using past growth to improve individual-tree diameter growth models for uneven-aged mixtures of Pinus sylvestris L. and Pinus nigra Arn. in Catalonia, north-east Spain Antoni Trasobares and Timo PukkalaAnn. For. Sci., 61 5 (2004) 409-417DOI: https://doi.org/10.1051/forest:2004034