Bryant, R., Bismut, J.-M., Cheeger, J., Griffiths, P., Donaldson, S., Hitchin, N., … Witten, E. (2022). Isadore M. Singer (1924–2021) In Memoriam Part 1: Scientific Works. Notices of the American Mathematical Society, 69(09), 1–1. https://doi.org/10.1090/noti2546

Bryant, Robert, Jean-Michel Bismut, Jeff Cheeger, Phillip Griffiths, Simon Donaldson, Nigel Hitchin, H Blaine Lawson, et al. “Isadore M. Singer (1924–2021) In Memoriam Part 1: Scientific Works.” Notices of the American Mathematical Society 69, no. 09 (October 1, 2022): 1–1. https://doi.org/10.1090/noti2546.

Bryant R, Bismut J-M, Cheeger J, Griffiths P, Donaldson S, Hitchin N, et al. Isadore M. Singer (1924–2021) In Memoriam Part 1: Scientific Works. Notices of the American Mathematical Society. 2022 Oct 1;69(09):1–1.

Bryant, Robert, et al. “Isadore M. Singer (1924–2021) In Memoriam Part 1: Scientific Works.” Notices of the American Mathematical Society, vol. 69, no. 09, American Mathematical Society (AMS), Oct. 2022, pp. 1–1. Crossref, doi:10.1090/noti2546.

Bryant R, Bismut J-M, Cheeger J, Griffiths P, Donaldson S, Hitchin N, Lawson HB, Gromov M, Marcus A, Spielman D, Srivastava N, Witten E. Isadore M. Singer (1924–2021) In Memoriam Part 1: Scientific Works. Notices of the American Mathematical Society. American Mathematical Society (AMS); 2022 Oct 1;69(09):1–1.