@article{diniz_picoli_lenzarini_2025,  title={The Sommerfeld-Watson transformation in teaching condensed matter physics: analytical diagonalization of Fermi gas-like models},  volume={47},  ISSN={1806-1117},  url={https://doi.org/10.1590/1806-9126-RBEF-2025-0103},  DOI={10.1590/1806-9126-RBEF-2025-0103},  journal={Revista Brasileira de Ensino de Física},  publisher={Sociedade Brasileira de Física - SBF},  author={Diniz, G. and Picoli, F.D. and Lenzarini, M.P.},  year={2025},  pages={e20250103} }