@misc{raschke_solar_radiation_1991, 
author={Raschke, E., Stuhlmann, R., Palz, W., Steemers, T. C.},
title={Solar radiation atlas of Africa},
year={1991},
howpublished = {book part},
note = {Raschke, E.; Stuhlmann, R.; Palz, W.; Steemers, T.: Solar radiation atlas of Africa. In: Balkema, A. (Ed.): Global and diffuse radiation fluxes at ground level derived from imaging data of the geostationary satellite METEOSAT-2. 1991. 155.}}