Van Wijk, Charles H.; Martin, Jarred H.; Firfirey, Nazneen(South Pacific Underwater Medicine Society and the European Underwater and Baromedical Society, 2020-12)
Woudstra, Marit Helen; Janse van Rensburg, Estie; Visser, M.J. (Maretha Johanna); Jordaan, J.C. (Joyce)(Education Association of South Africa, 2018-02)