@misc{callies_entropy_production_1989, 
author={Callies, U.},
title={Entropy production by atmospheric scattering of light},
year={1989},
howpublished = {journal article},
note = {Callies, U.: Entropy production by atmospheric scattering of light. Contributions to Atmospheric Physics. 1989. vol. 62, no. 3, 212-226.}}