Castello Branco M. "It will be an honor for the country and for the friend": : the letters of Friar Pedro Sinzig to Curt Lange. Rev. Vórtex [Internet]. 2024 Dec. 30 [cited 2026 Oct. 12];12:1-25. Available from: https://periodicos-hml.unespar.edu.br/vortex/article/view/9272