W. Freedman, and B. Madore. (2023)cite arxiv:2308.02474Comment: 12 pages, 9 figures, Invited Review for IAU Symposium 376, Richard de Grijs, Patricia Whitelock and Marcio Catelan, eds.
E. Asencio, I. Banik, and P. Kroupa. (2023)cite arxiv:2308.00744Comment: 8 pages, 1 figure. Accepted for publication in The Astrophysical Journal in this form.