RAO, V. N. Linear Combinations of Non Central Chi-Square Variates. Defence Science Journal, [S. l.], v. 18, n. 4, p. 215–226, 2014. DOI: 10.14429/dsj.18.7455. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/7455. Acesso em: 11 sep. 2025.