@misc{rockel_radiation_and_1992, 
author={Rockel, B., Levkov, L., Raschke, E., Stuhlmann, R.},
title={Radiation and clouds in general circulation models},
year={1992},
howpublished = {report},
note = {Rockel, B.; Levkov, L.; Raschke, E.; Stuhlmann, R.: Radiation and clouds in general circulation models. 1992.}}