VAN WILGEN, B. W. A tale of unusual dedication: The lives of JLB and Margaret Smith. South African Journal of Science, [S. l.], v. 115, n. 1/2, 2019. DOI: 10.17159/sajs.2019/a0301. Disponível em: https://sajs.co.za/article/view/5940. Acesso em: 29 mar. 2024.