Radial growth response of Douglas-fir provenances during extreme drought across a climatic gradient in Central Europe - Vincent P. Riedel; Pierre-André Waite; Britt Kniesel; Roman M. Link; Lukas Gunkel; Randolf Schirmer; Joachim Hamberger; Emilie Isasa; Christian Zang; Bernhard Schuldt (Forest Ecology and Management, 2026)