Litter production in a Quercus suber forest of Montseny (NE Spain) and its relationship to meteorological conditions Antònia Caritat, Emili García-Berthou, Roger Lapeña and Lluís VilarAnn. For. Sci., 63 7 (2006) 791-800DOI: https://doi.org/10.1051/forest:2006061