Rodrigues, Danilo, Jose Chiappin, Ramachrisna Teixeira, and Jojomar Lucena da Silva. 2026. “Revisiting Duhem: Quasars, Cosmology, and the Tripartite Relationship Between Theories and Experiments”. Cadernos de Astronomia 7 (1): 97-111. https://doi.org/10.47456/Cad.Astro.v7n1.49709.