Bryant, R., Cheeger, J., Griffiths, P., Blum, L., Burns, D., Connes, A., … Sternberg, S. (2022). Isadore M. Singer (1924–2021) In Memoriam Part 2: Personal Recollections. Notices of the American Mathematical Society, 69(10), 1–1. https://doi.org/10.1090/noti2573

Bryant, Robert, Jeff Cheeger, Phillip Griffiths, Lenore Blum, Dan Burns, Alain Connes, Harold Donnelly, et al. “Isadore M. Singer (1924–2021) In Memoriam Part 2: Personal Recollections.” Notices of the American Mathematical Society 69, no. 10 (November 1, 2022): 1–1. https://doi.org/10.1090/noti2573.

Bryant R, Cheeger J, Griffiths P, Blum L, Burns D, Connes A, et al. Isadore M. Singer (1924–2021) In Memoriam Part 2: Personal Recollections. Notices of the American Mathematical Society. 2022 Nov 1;69(10):1–1.

Bryant, Robert, et al. “Isadore M. Singer (1924–2021) In Memoriam Part 2: Personal Recollections.” Notices of the American Mathematical Society, vol. 69, no. 10, American Mathematical Society (AMS), Nov. 2022, pp. 1–1. Crossref, doi:10.1090/noti2573.

Bryant R, Cheeger J, Griffiths P, Blum L, Burns D, Connes A, Donnelly H, Ebin D, Guillemin V, Palais R, Rossi H, Simons J, Singer E, Singer N, Stanton N, Sternberg S. Isadore M. Singer (1924–2021) In Memoriam Part 2: Personal Recollections. Notices of the American Mathematical Society. American Mathematical Society (AMS); 2022 Nov 1;69(10):1–1.