Du Bois, Mikhalien. “State Use Provisions for Patent Law, and Expropriations: Some Comparative Law Guidelines for South Africa During the Covid-19 Crisis and Beyond”. Potchefstroom Electronic Law Journal, vol. 23, Sept. 2020, pp. 1-35, https://doi.org/10.17159/1727-3781/2020/v23i0a8150.