Du BoisMikhalien. “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 230 (September 15, 2020): 1-35. Accessed January 26, 2021. https://journals.assaf.org.za/index.php/per/article/view/8150.