Tree-ring indicators of German summer drought over the last millenium
Büntgen, U., Trouet, V., Frank, D., Leuschner, H. H., Friedrichs, D., Luterbach, J., & Esper, J. (2010). Tree-ring indicators of German summer drought over the last millenium. Quaternary Science Reviews, 29(7-8), 1005-1016. https://doi.org/10.1016/j.quascirev.2010.01.003