GROBBELAAR, J.W. Numbers, Predictions and War. Scientia Militaria - South African Journal of Military Studies, [S. l.], v. 11, n. 4, 2011. DOI: 10.5787/11-4-687. Disponível em: https://www.journals.ac.za/index.php/pub/article/view/687. Acesso em: 11 jun. 2026.