@misc{widmann_simulating_the_2003, 
author={Widmann, M.,Tett, S.},
title={Simulating the climate of the last Millennium},
year={2003},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Widmann, M.; Tett, S.: Simulating the climate of the last Millennium. Global Change Newsletter. 2003. vol. 56, 10-13.}}