COSTA, Antonio F. B.; MAGALHÃES, Maysa S. de; EPPRECHT, Eugenio K. Th e Non-Central Chi-Square Chart with Double Sampling. Brazilian Journal of Operations & Production Management, [S. l.], v. 2, n. 2, p. 21–38, 2010. Disponível em: https://www.bjopm.org.br/bjopm/article/view/BJV2N2_2005_P2. Acesso em: 15 feb. 2026.