Sandstrom Simard L. Rule 23: What it Reveals About How, and When, Courts Should Ascertain the Identities of Individual Class Members. U. Pitt. L. Rev. [Internet]. 2023 Sep. 25 [cited 2024 May 17];84(2). Available from: http://lawreview.law.pitt.edu/ojs/lawreview/article/view/934