Changes in foliar nutrient content and resorption in Fraxinus excelsior L., Ulmus minor Mill. and Clematis vitalba L. after prevention of floods Michèle Trémolières, Annik Schnitzler, José-Miguel Sánchez-Pérez and Diane SchmittAnn. For. Sci., 56 8 (1999) 641-650DOI: https://doi.org/10.1051/forest:19990802