Ring width and vessel lumen area of Fagus sylvatica in years with spring and summer drought - Meinardus, Cathrin; Quack, Kim; Raffelsbauer, Volker; Bräuning, Achim (TRACE - Tree Rings in Archaeology, Climatology and Ecology, Vol. 14: Proceedings of the DENDROSYMPOSIUM 2015 Scientific Technical Report 16/04, GFZ Potsdam, 2016)