“Culture Surface Aeration Technique for the Production of Bacterial Antigens”. Revista da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo 9, no. 1 (June 15, 1972): 63–71. Accessed July 11, 2026. https://revistas.usp.br/rfmvzusp/article/view/55120.