ROCHA JUNIOR, Nilton Thaumaturgo; DE SOUZA, Claudia Regina Ferreira; PIMENTA, André Rocha; FÉLIX, Valter de Souza; DE FREITAS, Renato Pereira. Use of the MA-XRF Technique in the Authentication of Guignard’s Artwork Recovered by the RJ Civil Police. Semina: Ciências Exatas e Tecnológicas, [S. l.], v. 46, p. e52400, 2025. DOI: 10.5433/1679-0375.2025.v46.52400. Disponível em: https://ojs.uel.br/revistas/uel/index.php/semexatas/article/view/52400. Acesso em: 5 dec. 2025.