@misc{gonzalezrouco_future_trends_1999, 
author={Gonzalez-Rouco, F., Zorita, E.},
title={Future trends of the North Atlantic oscillation simulated by  two climate models},
year={1999},
howpublished = {GKSS report},
note = {Gonzalez-Rouco, F.; Zorita, E.: Future trends of the North Atlantic oscillation simulated by  two climate models. GKSS 99-E-59. 1999.}}