@article{valença_menezes_moraes_ferreira_bohn_correa_2025,  title={Development of a low-cost system for energy conversion coefficient measurements based on thermomagnetic phenomena},  volume={47},  ISSN={1806-1117},  url={https://doi.org/10.1590/1806-9126-RBEF-2025-0116},  DOI={10.1590/1806-9126-RBEF-2025-0116},  journal={Revista Brasileira de Ensino de Física},  publisher={Sociedade Brasileira de Física - SBF},  author={Valença, Caio M.R. and Menezes, José P.O. and Moraes, Artur de and Ferreira, Armando and Bohn, Felipe and Correa, Marcio Assolin},  year={2025},  pages={e20250116} }