PLOEGER, Jan. Die opleiding van ons eerste vlieëniers. Scientia Militaria - South African Journal of Military Studies, [S. l.], v. 2, n. 1, 2012. DOI: 10.5787/2-1-971. Disponível em: https://www.journals.ac.za/index.php/pub/article/view/971. Acesso em: 12 jun. 2026.