@article {1136, title = {Spatiotemporal drought variability in northwestern Africa over the last nine centuries}, journal = {Journal of Climate Dynamics}, volume = {37}, year = {2011}, pages = {237{\textendash}252}, chapter = {237}, doi = {10.1007/s00382-010-0804-4}, author = {Ramzi Touchan and Anchukaitis, K. J. and David Meko and Sabir, Mohammad and Attalah, S. and Aloui, A.} }