Responses of wood anatomy and carbon isotope composition of Quercus pubescens saplings subjected to two consecutive years of summer droughtAlexander Galle, Jan Esper, Urs Feller, Miquel Ribas-Carbo and Patrick FontiAnn. For. Sci., 67 8 (2010) 809DOI: https://doi.org/10.1051/forest/2010045