Extraordinary drought of 2003 overrules ozone impact on adult beech trees (Fagus sylvatica). - Löw,M..; Herbinger,K..; Nunn,A..J..; Häberle,K.-H..; Leuchner,M..; Heerdt,C..; Werner,H..; Wipfler,P..; Pretzsch,H..; Tausz,M..; Matyssek,R.. (Trees, 2006)