@article{santos_silva_rao_satyamurty_manzi_2011,  title={Downward longwave radiation estimates for clear-sky conditions over northeast Brazil},  volume={26},  ISSN={0102-7786},  url={https://doi.org/10.1590/S0102-77862011000300010},  DOI={10.1590/S0102-77862011000300010},  number={3},  journal={Revista Brasileira de Meteorologia},  publisher={Sociedade Brasileira de Meteorologia},  author={Santos, Carlos Antonio Costa dos and Silva, Bernardo Barbosa da and Rao, Tantravahi Venkata Ramana and Satyamurty, Prakki and Manzi, Antonio Ocimar},  year={2011},  month={Sep},  pages={443–450} }