Leaf Morphological Traits and Leaf Nutrient Concentrations of European Beech Across a Water Availability Gradient in Switzerland oleh Maryam Salehi, Lorenz Walthert, Stephan Zimmermann, Peter Waldner, Maria Schmitt, Patrick Schleppi, Käthi Liechti, Mohsen Ahmadi, Ghavamuddin Zahedi Amiri, Ivano Brunner, Anne Thimonier