Varsi Rospigliosi, Enrique, Nelson Rosenvald, and Marco Andrei Torres Maldonado. “The Covid-19 Pandemic, Force Majeure and Changed Contractual Circumstances”. Acta Bioethica 26, no. 1 (May 25, 2020): 19–26. Accessed February 5, 2023. https://actabioethica.uchile.cl/index.php/AB/article/view/57351.