@article{caldas filho_2020,  title={SPACE ANGELS: ANGELOLOGY IN C. S. LEWIS’S COSMIC TRILOGY},  volume={52},  ISSN={2176-8757},  url={https://doi.org/10.20911/21768757v52n2p417/2020},  DOI={10.20911/21768757v52n2p417/2020},  number={2},  journal={Perspectiva Teológica},  publisher={Faculdade Jesuíta de Filosofia e Teologia (FAJE)},  author={Caldas Filho, Carlos Ribeiro},  year={2020},  month={May},  pages={417–439} }