@misc{matulla_direct_downscaling_2003, 
author={Matulla, C., Scheifinger, H., Menzel, A., Koch, E.},
title={Direct downscaling of Central European phenological time series using two empirical techniques},
year={2003},
howpublished = {GKSS report},
note = {Matulla, C.; Scheifinger, H.; Menzel, A.; Koch, E.: Direct downscaling of Central European phenological time series using two empirical techniques. GKSS 2003-7. 2003.}}