KOENIG, Jean-Claude. Dr Richard de Villiers – a tribute. South African Journal of Sports Medicine, [S. l.], v. 34, n. 1, 2022. DOI: 10.17159/2078-516X/2022/v34i1a14630. Disponível em: https://journals.assaf.org.za/index.php/sajsm/article/view/14630. Acesso em: 7 apr. 2025.